I have not tried the P90 model, but I have a set of Fluence in one of my strats. They are hum-free and sound good, particularly with the boost switch engaged. They sound a little "hi-fi" to my ears, which is not a bad thing.
I like them enough that I am going to try both humbucker (Les Paul) and P90 (SG) in the near future.
My vocation is more in composition really than in anything else- building up harmonies using the guitar, orchestrating the guitar like an army, a guitar army. | Jimmy Page