I’ve never used any other pressure cooker - I was always afraid of them. The Instant Pot is electronic and programmable in all sorts of ways. If you’re used to pressure cooking, it might not seem special to you. For people who have never used one, it’s very easy to figure out and play with.
We have the Fagor pressure cooker and it is constructed so that it is impossible for it to “explode” on you. It’s not programmable, though, so that sounds like the IP’s advantage.