The Roland AC33 is a little jewel! Terrific sound, either pure acoustic, in which case it reproduces the sound of your guitar faithfully, or with effects, which can cover a multitude of sins! It's light in weight which means you can walk into the gig with it in one hand and the guitar in the other. The battery power function is very useful at times. eg I was to accompany a choir on stage for a single number and its great not to have to scrabble round to find a plug and use an extension cable. I use it with my Takamine electro- classical and it works really well. Lovely also, to have an amp you can turn off without a mighty "thump" noise!
One small niggle. there's no cover with it.