I've had an Ultra since last August. Thought about selling it a few times, but because of the great enthusiasm of so many on this board, I figured there's more to it than what I was getting. It's been good for recording, but it never sounded good (to my ears) live--I play mostly blues, R&B, jazz, so I don't use high gain sounds. First time I gigged with it, used a HotRod Deluxe--I know . . . but it was kinda a test. Of course it sounded pretty bad. I tried a K-12, too bright for me, returned that. Then I tried a Power Engine 60 2-12, it was okay, but not great--returned that. Received my Reactor today and I'm totally blown away. The Ultra now sounds gorgeous! I can hear the differences of the cabs, the eqs have suddenly come alive. Compression, reverbs, amps, everything finally sounds as I was hoping when I first got the Ultra. Sorry for the long post, but it's been a long haul for me. Thanks to all the guys on this board for all the advice and help they've shared! I've learned an awful lot. And now, I can finally, put it to use.