Brilliant, and so simple

CometCache, the successor to ZendCache, is brilliant. I have a complex theme based on Suffusion, with 18 plugins. Load times were slow until I added Comet Cache. The extra feature to configure Apache is excellent, and enables gzip compression via .htaccess directoves.
It is also easily configurable with several options that have really sensible defaults, and explanations.
All in all, brilliant, so 5 stars!