I believe today, the PA 50 is the best bang for the buck. I mix and match sounds and styles with my KN7000.

Sound wise, the Tenor (sax) Noise, Club guitar, Jazz guitar, Harmonica, Wha trumpet and Organ sounds are outstanding! (IMHO)
Some of the styles may have to be tammed down as some parts are either too loud or too busy, or out of ballance. Once this is done, the registrations can be saved into a performance and/or STS and regitrations/voices can be changed on the fly.
I'm still learning the ins and outs of the OS. Trying to figure out how to program the organ rotor simulator to the wheel.

Mark