I've always told people the Pioneer 1000 is the Swiss Army knife of the SXS world. It does so many things very well but not the best option for given niches. If you halfway take care of it, you will never walk or get towed home.
For what I currently needed / wanted the 22 P1K Trail Edition was 90% there knowing full well what they can do. However the seating setup left something to be desired, didn't need a full bed, yet room for my dog. Back seat comfort was a strong consideration and that's where the P1K5 has back seats as an afterthought combination with the heat / steam still a perrinial gripe from many owners.
When I mentioned interior, I'm not talking about shiny gadgets, the precut 10 rocker switches- pull rubber plugs snap in switch, done. Padding for knees, center console you can lean / rest arm on. Back & neck support from seats- try hold your head back against Pioneer head rest in motion.
The RMAX4 is a cross between a Talon X & Pioneer that seats 4. 14"+ suspension, 10" longer wheelbase makes for a noticeable improvement at trail speed while not being a limo in turns.