Thanks for the perspective on your quit to date @RoryPlog ! It makes a real positive difference to others who come here and read posts because they are newly quit or just thinking about quitting and don't know what to expect.
I'm a little ahead of you in terms of quit date but your story sounds a lot like mine was. I still have yet to notice any earth shattering health improvements but I also know, my health has not declined since quitting so like you, it's all on the plus side. If you're like me, in your second year there,s still some very gradual progress in terms of those moments that hit you out of the blue when you start thinking about a smoke for no particular reason. They are pretty few and far between and almost laughable in terms of dealing with them. As you say though, always vigilant because this nasty addiction is always there in the dark corner just waiting to test us along the way. Pretty easy to just NOPE at it now though