"It is easy to use. Makes the site more snappy. Mike helped me with some questions I had, which I appreciate. Really solid extension and a must have for any store."
"Pros: Very advanced features, secondary cache, hole punch support,...
Cons: It's not 100% open source.
Summary: I use only primary cache and my web site is extremely fast. Also first byte load time is very small now.
Support team is very helpful. Highly recommended."