Who's had one, recovery time, etc. not sure i will have to have one but have had calcium score of 108 several years ago and am having another CT scan soon. Hopefully not any higher.

Recovery time after a cath/stent is about a day. You'll be up and walking before you go home. Your groin is sore for a few days, but unless there's significant bleeding at the site (you'll be on blood thinner afterwards) it shouldn't be a big deal.
Assuming it's an elective stent without an MI, etc.