I have an Instant Pot Duo, 7 in 1 electric pressure cooker, and I've used it all summer, so it's just just a winter tool. I've not used all the functions yet but it's been my favourite cooking method in the heat as it doesn't warm up the kitchen the way the oven does. I was too scared of a stove top pressure cooker to even consider one, but the IP (or any electric pressure cooker) means you can set it up and walk away from it.
There's a learning curve, and it's truly terrifying at first, but once you've used it a couple of times it really does become comfortable. You just need to keep safety in mind when you're releasing the steam - I invested in silicone oven gloves (from tesco) so I'm confident that my hands won't get blasted when I turn the knob.
If you like pulses, it's a wonderful tool as you can cook dried ones super quick, once they're soaked. Even unsoaked, cooking chickpeas etc is a fairly quick process. I've not tried yogurt making in mine yet, but loads of folk swear by it.
I prefer my risotto made in the IP, as there's no standing and stirring (yippee!), and the texture is gorgeous. I also make a lot of meals like spag bol and chilli in it. You can actually cook chicken from frozen and I've seen on FB people cooking a whole chicken quickly in the IP then browning it in the oven for a really juicy roast chicken. That, I haven't tried yet. But I will.
I bought a set of pans and trivets to use for pot-in-pot cooking, so I can do a curry in the bottom of the IP pan, and rice in a pan on top of it.
I joined several facebook groups specifically for pressure cooking, and that's where I really got the info on how to use it and how to get to grips with it. The recipes and info you get with the pot are a bit sparse, to say the least, but the online resources are amazing. It seems a very popular tool not just in the USA but in Asia and the middle east so there are hundreds of amazing food bloggers sharing their recipes and tricks.
I'm looking forward to using it in the autumn and winter. It's an expensive purchase, but for me, it's been worth every single penny.