Pros: Write speeds are the fastest I have seen on the countless number of SD Cards I have owned. There is no lag. Reading and writing to my computer was nearly instant. Camera operated faster than it ever had before.
Summary: Based on the price and my experience with the one I already have, I would not hesitate for a second in purchasing another.
Pros: Speeds are great - inline with more expensive cards. Reliability is great - it hasn't failed in nearly a year and several removal/insert cycles. UHS works great in my camera. It reduced my camera's write time noticeably thus giving me faster re-picture times.