Android Honeycomb was good. The upgrade to Ice Cream Sandwich impressed me, but on both the Motorola Xoom and the Samsung Galaxy Tab 2 10.1 started coming up with errors. I got used to seeing reference to Android processes having stopped unexpectedly on a regular basis on both devices.
Recently Samsung pushed jelly bean out to the galaxy, and the difference has been amazing. Once I cured the massive drop in speed by disabling a host of unrequested google software that somehow arrived with the upgrade, I realized the error messages had gone away.
Now the Samsung is working great and I wish there was a way to get the Xoom to run as well.