I am very happy with mine. Yeah, it requires attention from time to time (restart once in awhile, on wake, all the data sync takes higher priority so the tablet is not responsible if you try to multitasking, etc) and comparing it to the iPad 2, it is noticeably slow but it does what I need it to do. With the right app, I am enjoying all the website that I can use on my desktop, I read a lot of books while listening to my music through google music, watching 720p videos, use it as a giant GPS with my phone's wifi hotspot. The battery life is good enough to last me at least 15 hours, I am not using it constantly, charging it at night, unplug since 6am and then plug it back in around 10 or 11pm. The best part is it is kept improving and it gets all the upgrades before all other devices, at least it will be like this for awhile until the next reference device.
So yes, I am very happy with my XOOM.