Hey, I'm thinking about buying a second bass, right now i have a squire p-bass. So far I've narrowed it down to getting a fretless four-string, four-string acoustic/electric, or 6-string fretted bass. Ive been advised against getting a 6-string and the fretless basses ive seen so far are too expensive. Ive found an acoustic/electric within my price range that has gotten very good ratings, but i am reconsidering buying it because ive never played an acoustic/electric. Are they worth buying? How do they sound? Are they difficult to play?