Looking for Input on RZR-4’s

I’m looking to go to a true 4 seat UTV from an older 2 seat Arctic Cat Prowler 650. I’m limited on budget and I’m limited on length of UTV due to it has to fit in my toy hauler. So due to these restrictions, I’ve been primarily looking at the RZR-4 and the Teryx-4. Even considering the Honda 700-4.

Its primary use will be for both hunting and taking the family for rides on the mountain trails. I don’t dune anymore. So I don’t need a speed demon, but having more power than my old Prowler would be nice.

I have NO experience with the RZR-4 or the Teryx-4. So I just have been trying to do some research. I have found that I have concerns or likes and dislikes about both the RZR-4 and the Teryx-4.

I wanted to get your feedback on the RZR-4. Your likes and dislikes? What things to be concerned about, and out of those what can be corrected?
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Out of my research I have read:

1. Polaris has some reliability issues. (Have you experienced a lot of issues?)
2. The RZR-4 has a crappy air intake that can cause engine issues. (Is this easily corrected?)
3. The RZR-4 does not have engine braking (I have heard you can get a kit from SLP. Does anybody have this kit, and if so how do you like it?)
4. The RZR-4 clutch is not very responsive, and it burns through belts quickly. (Is this true? Can anybody describe the difference to me between the Polaris CVT and the Teryx-4 CVT, and why the Polaris is less responsive and wears belts faster?)
5. Polaris does not have a true 4wd, and is basically a limited slip system. (How well does this system work for creeping/crawling up hills? Can you crawl, or do you have to be hard on the gas?)
6. RZR-4 has less cabin space than the Teryx-4 (my kids are still young, so I don’t know if this will be an issue really)
7. What about engine/transmission noise? Is it bad? (I would have to assume it would be pretty quiet considering the engine is placed in the rear?)