Portable? Hmm.
I've been using one of these (BX1200) for pub gigs for years now. Bought it because at the time, it was the best combination of small and loud I could find on my budget.
Sound, as others have noted, is OK. Nothing to write home about, but usable. Reasonably loud for what it is.
At 22kg it should be reasonably portable, but actually the kickback shape makes it the single most unpopular bit of kit in our band.
It's just really awkward and uncomfortable to carry, and we've had more than a few barked shins and twisted shoulders between us. It's too small for two to carry, and for one person there's really no health-and-safety-approved lugging method.
I've no experience of the little lightweight Gallien Kruegers, but mightn't the MB115 be worth a look?