So far to date I've had three procedures carried out with a spinal anesthetic (HoLEP, bladder stone removal and kidney stone removal) and everything went smoothly with all of them.
Recovery was trouble free and although complete recovery of lower limb control and return of sensation takes a couple of hours, the whole process makes for a less risky option than a GA and altogether more comfortable.
Add to this, being able to watch on a seperate screen what the surgeon sees on his screen as the procedure progresses is awesome and I found the surgeons most amenable to explaining what they do at each stage.
I know I'm going to need a hip replacement at some time in the future and I'm going to opt for a "spinal" for that procedure as well.
Good luck with whatever choice you make.