I am a Columbia guy normally, but I got a good deal on these and figured I would try them out. My thought was "if I don't like them I will just sell them after review."
Having had them for a couple months, I find them to be just as good as my other SPF pants. I have gotten to a point in my life where I do not like applying sunscreen for multiple reasons (sweat gets it in my eyes, scent gets on my bait/lure, hard to hold on to gear) so SPF clothing is a must for me.
These UA pants fit true to size and are not binding in the least. I rarely zip them off so I cannot honestly comment on the shorts. I can wear them all day long and have no complaints. When it comes time to get new pants, definitely give Under Armour a look.
By the way I still have the pants, they have found a spot in my closet.