The only issues I hear about 4.3 are people who have _upgraded_ (not fresh installed) to Mavericks on OS X. Personally, a fresh install of 4.3 on Mavericks and I have no issue.
Mavericks and VB 4.3(4.3.2) doesn't really go hand in hand together, I wasted several hour the day before on trying to configure it properly to no avail, downgraded to 4.2 later on. It's better to stick with 4.2 if you are on mavericks.