No matter how good the reviews are on paper, your ears will give you a more dependable truth.
Id go demo a set if you can, even if you can demo a lower end model, you will get an idea of the tonal properties the speaker has.
I know with Kefs, they have a nice wide sound-stage. So if your going to be placing the speakers far apart either from each other, or the listening position, Id take that into consideration.
Havnt played much with the PSB, but id imagine they are just as good too.