Sadly out of production now. I bought this to carry on the London Underground to small shows, use it all the time. Loud enough to play live with, small enough to carry everywhere. The sound is really quite good too, gets a bit too fuzzy if you're blasting it loud, but that's fine by me. Perfect for the lo-fi powerpop sound I want. Sound guys often ask if it has valves (it doesn't).
A few years ago I had a Vox Pathfinder without reverb. I loved the tone, but really wanted that reverb, as I played a lot of lap steel at my church. I played out of a Peavey Classic 50, and still love that amp above all others, but it's incredibly heavy. So I needed something that was small and light, but still had good tone and that reverb (gotta want that reverb).
Unfortunately they don't make these anymore, so when you find one on Craigslist or in a music shop, do yourself a favor and pick it up. Its tone is nice and full. The spring reverb isn't exactly "Surf's Up" echo-y, but it's good enough to add a nice dynamic to your playing. It also has a nice tremolo feature as well.
These can be had for around $100-120, and it's worth every penny.