I'm one of those people who learns by making mistakes (as many of us are), and I make much faster progress if people tell me things are screwed up sooner rather

I'm one of those people who learns by making mistakes (as many of us are), and I make much faster progress if people tell me things are screwed up sooner rather than later. Granted, not sure I'd tell someone they did a shitty job, but certainly "this work product is not acceptable" is a reasonable thing to say :)