My intention was to fit inside my Epiphone Songmaker DR-212, a twelve string guitar. My main concern was the huge headstock that this guitar has but eventually, it fits! However, it leaves a gap around the body of about 3cm. The guitar moves around a little bit but not in way that can be worrying. As for the case, it looks sturdy, with expected normal weight. Not for extreme heavy use, but for the instrument protection and moving around is ok. The lock could have been better, I get the feeling that if I start using it by locking each time, I might have an issue sooner or later. I have seen the same look in all Gator cases within this price range. But I don't use, so I am not worrying for that. I prefer cases instead of gig bags for my guitars and this one offers me the protection I needed.