My own personal experience: I used paint that included primer, and did 2-3 coats, rolled. Tried spraying with my cheapy Wagner sprayer, not a good experience. However, the high pressure, low volume sprayers are supposed to work pretty well, depending on the brand, filtration, experience of the sprayer, etc. You can rent one, unless you plan on spraying more later, but the learning curve may take more time than it's worth. Plus, if you mar it (and that will happen eventually) the entire section would have to be redone in the same way, to get the same quality, consistency, as when it was done the first time. And when carpet is in, and fixtures, it's tougher to mask off and try to re-spray.
Again, this is just my personal experience. I know there are really, really good folks/pros that have no problem with spraying and it looks amazing.