Primare makes some very good gear. Its well built and sounds very good to people who like their presentation. You get what you pay for with their products.
I personally don't care much for their presentation. Its a bit too cool, analytical and distant sounding for my tastes.
Its definitely worth hearing if you have the chance. Like anything else that's good, some love it and some don't prefer it, but pretty much anyone who knows anything about the hobby will respect what it does. Its more a matter of taste than anything else.