Absolutely. I have had the iPad 1, Asus Transformer, Galaxy Tab 10.1, and iPad 2.
IPad 1 - I made myself sell because I wanted to move from a quad core PC to an iMac 27". So by selling iPad and my PC to friends interested in the machinery for their office helped me bank roll almost /2 the purchase price of am i5 iMac.
Asus Transformer - for the value the best tablet in it's class, except I went through 4 units from Best Buy. Apparently their June production run had QC issues. First 2 rebooted and had light bleeds. third one croaked after an app killed it. Fourth one had a broken sad card slot out of the box.
Galaxy Tab 10.1 - after 4th Asus exchange I decided it was time to try something different. I kept the GT for about 1.5 months. It was by far better for and the Samsung TouchWiz update made it much more refined. As far as android tablets go, it's the top dog. The downside was this: I have an iMac, MacBook Pro, 2 Apple TV's, and an iPOD classic. So this thing for all its perks is an island on it's own with the rest of my machines and setup. Although there are ways to bridge the gap, there is always another gap to fill.
With iOS5 on it's way, there will be even more gaps in my household. For instance, iOS4 you can AirPlay audio from iPad to Apple TV. But with iOS 5 you will be able to mirror your screen directly on to the connected TV wit your AppleTV. Also printing is very hit or miss with Android. There really isnt a "for sure" printer setup unless you go with a specific manufacturer and even then there are limitations like PDF or JPG only. With iOS and select HP AirPrint printers, you can print emails, webpages, and such using native support in the OS. Android requires an app from the manufacturers and as I mentioned that is where you have limitations with files only.
In summary I gave the Android tablets a go because for now my phone is Android. Until an iPhone upgrade is available for me, I thought it would be best to keep both the same. That way I buy 1 app and can use for booths tablet and phone. Unfortunately I bought a lot of apps to try and get the android tablets how I wanted. And Androids ability to personalize the device is it's strength and it's weakness. I spent way too much time customizing home screens, finding widgets, alternate homes, etc.... Almost to the point if insanity. Lol
The one thing I really liked in Android, unified Notifications, is coming to iOS 5, I think illl be very happy in my home. All my movies and music even the DRM files are playable. There is also accessories available in whole isles, where as the android tablets are not only specific to each tablet but barely take up a shelf.
It's simply put a matter of situation and your needs. For me, iPad2 just worked better in my home and the features coming won't make me miss Android at all.