I worked in an ENT office a few years ago. Typically (and I'll assume you would be the same, it's par for course), they will septoplasty with turbinate reduction. The surgery itself is very routine (our clinic's surgery center had 4-8 a day, 4 days a week). The first and second day you will be rum-dummy on pain medicine. Day 3 you will think it's the stupidest thing you ever did, and you won't believe you paid someone to make you feel like that. Then you will take your pain pill, go to the doctor's, and they will take the splints out. This relieves the massive feeling of nasal sinus pressure. After a week, most people are "okay" but discouraged that they aren't "better." After 6 weeks, they are singing the doctor's praises more often than not
I've seen some tough recoveries, but it generally depends on basic self-care. Don't overdue things after surgery, let people take care of you, and you will heal better/faster.