Yeah, the Xoom is kinda' bulky compared to other Android Honeycomb tablets out on the market right now; Glad i waited for the Samsung Galaxy Tab 10.1 ... it's AWESOME !!!
I have not tried any Android tablet that is anywhere as smooth as the iPad, they also felt unrefined, but that probably changes once you customize it for how you want to work with it. Based on my limited time checking out a sea of different android tablets at a box store, and one WebOS tablet, the only one that I would probably seriously consider other then my iPad 2 is the WebOS, but its limited by how much is out there app wise.
Customizing an Android tablet doesn't make it any better. Android (Gingerbread or Honeycomb) is not ready for tablets despite what the fandroids claim. Multitasking task management is broken (by design) and it just gets worse from there.
Truth be told, it is has only been wishful thinking by anti-Apple people that gave these competing tablets any buzz. They diss the iPad due to lack of an SD slot but lauded the Motorola Xoom for including an SD slot... in spite of the fact that the device shipped in Feb 2011 without support for the slot and only added it last week.
The competition is stumbling and fumbling over themselves and there will still be mindless anti-Apple bigots who blame the so-called mindless Apple customers for the iPad's success.