ive usually had good experience and the ones who completed the work i stay with.But in saying that there is a lot of scam people out there who would like nothing better to do than rip you off but i suppose thats works both ways - coders also dont get paid for doing the work.I agree though vb.org needs to implement a feed back system and its been asked for many times but they simply dont listen to us mere users on here.
Here is the coder i use and have used on many occasions and never had any problems with : Eikinskjaldi
https://vborg.vbsupport.ru/member.php?u=130702