@bellac11 sorry this is a bit of a late response - but I totally understand! When I was researching I was only looking at UK - I know a lot of people have been extremely happy with going to Turkey but it just wasn't an option for me personally.
Then, luckily I have a Spire hospital very close to me so I made contact with them and had a zoom consultation with the surgeon which was very helpful. He directed me to a Facebook page which was set up by his former patients. It's a private group and if you don't go ahead with the surgery they do remove you after a few weeks, to protect the members really. So that group includes a few people who are 5 years post surgery, a lot who are days/weeks post surgery and a lot of people awaiting surgery but with their date booked. The surgeon himself and his team (nurses, psychologist, dietician) are all on the group too and it's so reassuring to have them being so responsive and accessible.
The aftercare is 2 years but I've seen posts where someone is four years post op and suddenly getting bad acid (just an example!) and he will get them in to look at them - honestly, the aftercare doesn't seem to officially end with them!
Spire admin have been a bit of a disaster but the bariatric team more than make up for it and I'm very pleased I went with them - as I say, very fortunate also as they are 10 minutes away from me! (Gatwick Spire).
I'm nearly seven weeks post op and nearly 3 stone down now. Got my eight week check up at Spire on Monday so I'll be weighed then.
Very happy to answer any specific questions - although I may not be speedy responsive as about to take toddler to a group! (Which I signed up to when I was nearly two weeks post op - I would never have been confident enough to do it before!)