I had a Series 3 for several years. Was looking at either a S7 or 9 on the basis that the 7 and 8 are comparable enough that the 7 seems better price-wise. I ended up going for a refurb (through Apple) SS Series 7, because if I’m being honest, that S3 could have kept on trucking for a while longer and so I’m confident the 7 will last me probably as long as I want it to, and the SS/saphire will be a bit more durable than the aluminum S3 I had or the aluminum S9 would have ended up with - a SS S9 would have just been too much. I’ve had it for a month or so, and I’ve really enjoyed it. It’s a big upgrade from the 3 in many ways. Anyhow, that’s my 2 cents.
Nah I upgraded from an XR to 15 Pro and it’s just a great upgrade. No complaints. Battery has been great. Cameras are great. It’s comfortable to hold. It’s noticeably fasted than my old device. In the end, it’s just another mobile device, but it’s a good upgrade and I’m happy with it.