I just bought one from another player here in London, UK. In the past I've owned a Vox AC30 and a Music Man 2x10, and have played through many other classics: I have to say the Mahaffey Little Lanilei 3350 is possibly the sweetest sounding amp I have ever experienced. I once tried something really expensive by Orange which I still dream about, and the crisp sound of a HiWatt appeals, but this little tiger is up there scrapping with those kinds of beasts for sublime sound. The difference is, if you hold this in one hand and a six pack of beer in the other you'll be pretty evenly balanced! Not only that, but you'll also be set up for an excellent evening.
My only slight criticisms are that the gain switch on the rear is in a vulnerable place (I know of two or three cases of them getting broken, mine needed replacing when I bought the amp).
Also, it's cool that the line out doubles as a send/return effect loop but it's at the professional +4dB line level and with an amp this size I'm much more likely to have foot pedals with me than 19" rack gear so wish there was an option to run the effect loop matched to the levels and impedance needs of footpedals.
When playing through the built-in speaker I do like to add a touch of low end (I use a parametric eq pedal), but given the proportions of this thing it would be insane to make a big deal of that. It's worth knowing, too, that if you make a lot of use of very-clean-indeed high-headroom sounds then this might not be ideal for you, although there is another model designed around 'clean' and some report that this amp responds great to swapping out to valves of different gain ratings.
Overall, though, in a word: it's magnificent. I really REALLY like it and for now I just don't want to play through anything else.