Well if you think that most software that outputs Gerber is 'buggy' then it's time you stop playing with hobbyist software.

We use Easy-PC from No.1 Systems...

http://www.numberone.com/

It works, there's no issues, and it's been around for some 23 years...

Btw... we also use Solidworks for designing enclosures, custom parts and the like - expensive, but it does what it says on the box.