Every time I try to install PostgreSQL it fails. Every time I install MySQL it installs successfully with no problems. Actually, that's the extent of my experience with it, and I guess I'm fine dealing with a database that doesn't validate date formats strictly if I can use the damn database without hassle. I am totally fine using Postgres at a company or with another DB developer who knows how to set up databases properly, but if I am starting a new project, I am going to use MySQL, period.