Well, this might be a stupid question. But I got a bike where the overall quality is not all that great, a lot of VP parts and a bad paint-job. But it's a Crmo 4130 frame.

I know 4130 is not a premium tubing but it isn't THAT bad either, what I'm getting at is, what level of quality can I expect from a china made 4130 frame, is it worthy of a new paint-job and a few upgrades? Or does tubing quality not reflect frame quality at all?