I had both taken out at about age 35. It wasn't too bad, but that was in the day where they kept you in the hospital for a few days. Lots of jello!!
It was one of the best decisions I ever did. Sinus infections are a thing of the past. (knock on wood)
Your adnoids serve a purpose to hold junk, aka bacteria. In a normal person, they hold and slowly release. Mine didn't release, hence lots of colds, ear infections, etc.
My daughter had them out at age 4 and was running around in a few days. Me...well, I'd say a week or so.
I would certainly counsel someone to have the adnoids taken as well as the tonsils.
Abbey