I would really advise against people playing the pre-releases unless you are extremely impatient. The full 3.20 is only about two days away from release (and has pretty much always leaked here within a day) and it will be much more stable, have the partially finished roland quest more fleshed out, and have the monthly CGs that weren't in the pre-release.
I realize very few people will end up reading this, but seriously, just hold off for the full monthly release. Whether you are more interested in the RPG side of things or the adult content side of things, the non PR version will be worth the few extra days of waiting.