I use my instant pots 2-4 times a week, they're legitimately fantastic. I actually have two, the lux mini (6 cup/2 quart, very small) and Ultra (idk but it's huge, the mini would probably fit inside cooker and all) and sometimes I'll have them both going at the same time. My new thing that I love to do in the lux is chicken fajitas. Sear some boneless thighs, dump in the lux mini with some seasoning and however much water the seasoning recommends, 12 minutes at 12psi (only temp on the lux, low pressure on the ultra), saute some bell peppers and onion while that's going on, dump all the chicken into the frying pan and simmer until it thickens. Then you can just dump it back in the pot once you're done eating, put a lid on it, and stick it in the fridge
I'm a big fan of the Ultra because it will do 15 PSI cooking so it's safe to use for long term canning of non-acidic food (most only do 12 PSI unless they specify otherwise which isn't hot enough to kill botulism) and in Ultra mode you have complete control over what it's doing, you can set a specific temperature for 3+ days which I use for sous vide steaks and brisket (135F for steaks seared on nonstick pan, smoke brisket for flavor and then 202F for three hours then 175F overnight/until time to serve for fall-apart brisket)
The lux mini is very entry level but very serviceable as long as you aren't canning (and it's too small for canning, really). A few different preset modes but mostly you'll just want to figure out the best time for whatever you're doing. The two big ones I use it for are 12 minutes for shredded chicken, 4 minutes+10 minutes rest for rice
I haven't tried the Ninja pots but their other products that I've tried have been really good so no reservations on recommending them. Just check the features so you know what you're getting. The IP Ultra was definitely worth the $160 or so I spent on it, there's basically no feature it doesn't have that I'd want to add. I think you can get an air-fryer lid for it but I've already got an air fryer (which also gets tons of use, but yes you have to deal with them having polymerized grease buildup that you can't just clean off)