First four days with it.
Look: It's a nice well polished unit with the same sort of feel to it as an iPod Touch. The switches are well placed and a bit resilient in their feel and build. But not so much so that you can't use them without having to work at it. But no accidental volume changes or turn offs or locks.
Set-up: Easy Peasy. You install the latest version of iTunes and you hook up the iPad to your computer. It synchs, registers and moves along fine. The power situation is a bit differnet from an iPhone/iPod. It takes a bit longer to charge off a computer's usb power port and requires a different power adapter than the iPod/iPhone so some of your peripherals won't work out for power charging purposes.
Interface: It's your standard iPhone/iTouch interface gone big. You can touch, tap, drag and pinch to zoom in/out. With more space you can do a bit more. The menu bar can hold up to six apps vice the four of it's little brothers. The keyboard is quiet and typing it is very useful but takes some getting used to. Depending on the way you orient the keypad takes a little getting used to. Tilted into landscape orientation and the keyboard is fairly useful for a ham fingered guy like me. Or you can use any bluetooth 2.0 keyboard like the chiclet apple bluetooth keyboard that I have for my mini-mac/mac book docked projects. (which is how I'm typing up this post with the iPad)
Systems settings are fairly intuitive, you tap to the app or general setting and bang you've got some options to choose unchoose (bluetooth/wi-fi on/off, hidden, ect). You can set wallpapers for the background (something I wanted to do FOREVER with my phone), set portraits, set things so you can go into picture frame mode when you're locking the iPad and a variety of options for the aps you download.
APPs: The meat of the iPad. I got a bunch of apps from my iPhone and more than a few free or majorly discounted with release weekend. A LOT of free aps that deal with my interests and/or plans for the iPad.
-Ebooks: iBooks: Haven't done that much with it. Yet. It comes with Winnie the Pooh and is very nice. Scaleable fonts, crisp looks and smooth page turning back and forth. The bookstore interface isn't so good, but then neither is the Kindle's native browser store (I usually buy it off the website)
Kindle Reader: Updated release day for the Ipad. It's 'shelf' isn't as pretty as the iBook app's but you have access to your archived books, which means any book you've bought for the kindle is there the second you connect with the net. No notations (as yet) but I am sure that is coming.
Comic Readers: Marvel, IDW Comic reader, Comics X: all of them are fairly the same. Nice shop interface, and all of them have a fairly crisp graphics. You can sweep from panel to panel or page to page. Each of them have a good selection of books (free and otherwise). My only major complaint is backing out of the durn comic when you're done. (minor bitch)
Barne's & Noble: Haven't tried it yet, but I'm betting it'll be as flexible as the Kindle reader.
-Productivity: You can buy the entire iWork's suite in three small bites (9.99 each). Haven't done it yet, but most likely I'll wind up getting Write as least (Particilarly since MS won't be releasing Office for the iPad and OpenOffice isn't coming either). I downloaded a few note programs to try out as I get into school. As I use Bento on my Mac for character databases, I've got it on special for the iPad (thus far.. I'm not too happy with it.. but it's 4.99). There were a couple pdf readers that were on special and I got a few of them trying out, but thus far I'm not too happy with the interface of them (they tend to scroll rathter than allow back and forth like I want to do. Aside from reading them they don't have much options)
-Network tools: This is one of the areas I was curious about, using it to troubleshoot a network and remotely control computers. (I got a special ap and one of the better aps that I had read about). I'm currently testing them out. The small display and sometimes quirky controls makes my main mac hard to control (dual monitor displays) but my mini-mac server and mac book are doing fine. I'm going to put my PC back together to test it out but from what I read it was just as good with a windows network.
-Entertainment: ABC came out of the release weekend with an ap to stream their shows. Very impressive on the iPad screen, with minimum lag over the wifi connection (Watched an episode of V and Castle after going to bed. Both angles work good) The Sony tailer ap for the iPhone works well on the iPad and was updated for the increased size and resolution. I haven't tried the NETFLIX ap but I think it will be just as good. I expect a few more apps to come up in this area.
-Games: I got a few free specials. iMahjong for one. Not a bad version of the game. Godfinger/Turf Wars are two online social games that came free. (you can buy power ups). Godfinger is a 'god game' where you get your own world to play with. Smite your worshipers, build stuff with them whatever. I like it, it's fun and quirky. Turf Wars is an adaption of the iPhone version where you stake a claim on real world turf and work your way up as a mobster (I own my apartment complex..LOL). Lots of fun. I live in fear of reaching the level where my nearest foe can hit me (he's about 5 miles from my turf at this moment).
I also broke down and bought two games I knew I'd like. Plants vs Zombies (I am sooo sooo weak). It's crack on any platform. You play it you'll understand. Implode XL. Blow up buildings on a blue print. Almost as much fun, playign with the level creator now.
Grouses: No native clock, calculator apps (I like playing my iTunes till I fall asleep and use my iPhone as an alarm clock).
Serious limits in what you can put in the iPad's memory (I'd like to be able to drag/drop my pdfs as I wish)
Occassional Wi-fi issues (but it's like the first iPhone release and that would go on to be fixed by a hot patch)
It's an interesting piece of tech and I am definitely looking forward to further testing it's battery life (it's taken about an hour and half with wifi and bluetooth) typing this out and I've only lost 7% battery life from full charge. I think the ten hour battery life is a conditional thing but we shall see.
I'll post more as time goes on. Feel free to ask questions.