Simms Sun Sleeves

Anyone here ever try the Simms Sun Sleeves? Looking for opinions on them. I have a bunch of long sleeve performance "sun shirts" but was looking at these as another option. I'm ordering their Solar Flex Guide Gloves and might pick up the sleeves as well. Hopefully the sleeves will be long enough for me (the common problem with my LS shirts) and I wonder about the comfort fit of the elastic around the bicep.