I was in search of an AD30 for a while and one day an employee from Sam Ash sent me a text about this guy. Picked it up and immediately fell in love. The "Dirty" channel is rich and harmonic, but when set with high head room, (gain low and volume cranked) you get a crisp clean tone with a tight bottom end and chime-y cleans. I use the "natural" channel which is a bit more flat and consists only of a volume knob. I love this channel because theres no EQ on it, so I don't spend time trying to fiddle with it. I run my pedalboard in with a compressor and get endless tones that leave others scratching their heads wondering how one amp can cover so much ground. And the 30 watts is perfect. Not too big, but not too small. Great amp. Glad I got it over the AD30.
The Rocker 30 is a damn good sounding amp for the money. They were made in England which is cool. The controls are simple it it looks like a million bucks. The clean sound isn't anything to call your mom about but the dirty channel can pump out some really nice, chimey, sparkly clean sounds with just a twinge of breakup all the way up to some pretty rockin' distorted tones. I wouldn't call it metal but it's doesn't claim to be.
Great purchase, relatively high reliability (I had to have a couple resistors re-soldered after they cam loose and started making some racket of their own, but the amp got me through the gig), it's a shame they don't make this model anymore.