I have two friends who are 60 and 90 currently doing well on hormone treatment. The important thing is to remain active and improve lifestyle wherever possible.
One had leg pains and bone scan hot spots when diagnosed a couple of years ago, He hasn't had any recent pain, the hot spots did not show up on his recent scan and his PSA readings have been under 1. He still plays golf and goes on a lot of trips.
The other friend has also kept active at 90, and still drives around for his usual activities or to visit.
If there are any problems with hormone treatment, there are things which can help, including change in medication. Some men react differently to the various medications and find one can be more effective than another. Testosterone and Dihydrotestosterone levels should be checked to ensure the medication is doing what it's supposed to.
The yananow site has stories from many men who have used various treatments including hormones over some time. It's worth looking at the mentors experiences section there.
It's also worth reading the book by Dr Myers on beating PC with hormone treatment and diet. Dr Myers used radiation and hormone treatment for his own high risk PC about 8 years ago, and has used it extensively for many of his patients since. He is one of the few available experts on hormone treatment.