Well, I just did a few recording tests and I'm absolutely delighted with the results - getting the sound I want and getting that sound to actually work in context has never been easier.
I went for something relatively smooth, with the gain at around 4, volume at 7. I was using both pick ups on my SG, with both volumes turned down a bit and the tones slightly rolled off too. That's usually a good place for me to start, getting just the right blend of those two pick ups.
I placed a 57 maybe an inch away from the grill, w/o paying much attention actually - I simply pushed it close to the center and left it there, as it worked ok.
The amp is Class A - I hadn't really paid any attention to that fact until I sat back and listened to the playback of the track I had just recorded and realized that there was a hint of something I associate w/ Vox and Matchless in there. More than a hint actually.
Overall, it's a very tight-sounding amp, lots of punch. And I can crank it all the way w/o having to worry about being too loud. It isn't the typical Marshall-type of sound I'm used to, but it's a sound I feel very comfortable with - it has elements of lots of classic type of sounds that I like. I can't wait to start messing with mic placement, and maybe had an EQ pedal via the FX loop.
Anyone in the market for little amp should definitely check them out - at $199 this weekend, imho, nothing comes close. Even if like me you'd be tempted to associate the name Randall with über metal riffage, this one has a lot more to offer than that.