I am looking for a $200 - $300 reverb unit to use for live sound for my acoustic trio. To start, it will be used globally on guitars, acoustic bass and vocals (though ultimately I would like to have two units, one for instruments and one for vocals). We play small to medium size bars that don't have the best stage setups, and all kind of wacky room configurations, and our audience numbers swing wildly (say from 10 to 100 people) show to show. To get by, I just bought an Alesis Microverb 4, but now have read a few comments about Alesis that say their sound quality is poor. Luckily, I have 14 days to return it if I find something better. Any suggestions for a better unit in my price range? Thanks!