I have knee problems, I had to go my knee scoped in febuary of last year. When april rolled around my friends wanted me to go, so I bought these to protect my knees. It's the best pruchace I've ever made. Before I used to come home with sore knees, cuts, etc. Now I don't even feel it, even if I'm on my knees all day behing bunkers. Hell, I've even used when I had to be on my knees putting together and entertainment unit. They are great.
Weaknesses:
They slide off sometimes in the middle of games when I slide into bunkers. But honestly I think all knee pads.
Conclusion:
Great product. I recommend this to everyone that is trying to protect their knees and still play the sport we all love.