I just got it, here are my first impressions:
I like that to wake the iPad from sleep you either hit the space bar or the "Home" button on the keyboard. No swiping to unlock.
No suprise here, but typing is much much faster and easier than using the on screen keyboard.
I was concerned that going back and forth between typing and tapping the screen to navigate would seem clunky and unnatural. I can say that in the limited amount of my time with it, that is a non-issue. The base is very sturdy so swiping and selecting things on the screen is not a wobbly experience. There is some movement of the iPad when you are touching, say, halfway up on the screen or higher but nothing that serves as a distraction. Naturally, the lower on the pad toward the base you tap or swipe, the less you will feel that movement. I would say most folks are going to swipe through pages lower on the pad and doing so feels quite nice.
Overall, I would reccommed this over a bluetooth because of the dedicated buttons specific to the iPad along the top. It is a great way to have your iPad at work or anywhere you will be stationary for extended periods of time. My one gripe would be that you will have to shell out another $29 for a charging cable as this, like the dock alone, does not come with one. I bought a $24 Phillips Dual Port wall charger for the iPhone & iPod. It says it delivers more power for faster charging, so i thought I would give it a try. It has two USB ports so right now I am charging my iPad and Iphone at the same time with the one unit.