People get sold on an idea, and the idea doesn't always live up to expectations in real life. I think we all get sucked in at one time or another, because something appeals to us, and when we read all of these feverish posts and reviews talking about how amazing something is—it just feeds the fire. But the real test is time and usage, period.
I was looking for a compact, light head that I could bring to rehearsals that sounded amazing. My quest began. I had seen tons of glowing reviews about the Tonehammer, so it went to the top of my list. I went to a local music store that has a pretty extensive inventory, where I was able to plug a bunch of amps into the speaker that I actually own (this is very basic and important... but an amazing number of people will go out and try gear out through equipment that they don't own... it may be cool to plug into an Ampeg SVT and an 8x10, but if your rig consists of a Crate solid state head and a single 15, then it should come as no surprise when that killer piece of new gear sounds like limp spaghetti coming out of their rig).
I admit that I went there fully prepared to buy the Tonehammer, but after playing through about 8 different heads, I was very surprised to find out that the nicest tone that I was hearing came from a Gallien Krueger MB Fusion, a brand that I'd never considered before. I was sold.
Personally, I found the Tonehammer to be somewhat sterile—now I know that there are people out there who LOVE these amps, and will argue until the cows come home about how perfect they are—and they're perfectly right to do so, because this piece of gear works for them. If anyone asks about what kind of small amp they should buy, I'm happy to extoll the virtues of the MB Fusion because I love the way it sounds, and how easy it is to get those sounds (no wrestling with parametric EQ's!!). But is it right for you? Who knows, you'll have to try it out for yourself.