Good extension. But if you find a problem (error) in this extension and then report about it on a forum - the administrator of a forum (Peter), without checking this report, starts proving that is No problem and All is fine. I found two errors in last two versions but instead of "Big Thanks for extra quick report" I received haughty - "don't use my extensions" and blocked topic?! - it, probably, for my spent time (screenshots, videos, account registration for show him his errors!). You can see all conversation at a forum: public extension support -> cache cleaner -> Cant update from 3.3.2 to 3.3.3.
"Excellent"(for plugin) - "Very Poor"(for forum answers) = Average.
But I give you 5 stars, because.....may be you had a bad mood at that time. Good luck and more kindness and professional endurance.