I've got a Rogue Stereo 90 that I love. Its the replacement for the 88, and I think you can even upgrade the 88 to a 90 by sending it back to Rogue for some work. I love it, great imaging, non-fatiguing, and more power than I need.
I think it provides the blooming mids that tubes are known for, while still keeping much of the bass punch that many tube amps lack. When I bought it a few years back, I did side by side comparisons with several tube amps (including quicksilver, CJ) and the Rogue won out because it had the tube warmth while retaining the bottom end.
Big changes in sound can be made by tube rolling to your tastes as well.
--Dave