Hello,
As the addons describes, it really works well on my site with minified theme! Before this module my website takes about a 5s to load. Whit tinifier the same website loads in about 2,5secs. This is great. Thanks.

This add-on definitely has potential if the bugs are worked out. I ended up using Miser to handle problems with C5 load times. I also enabled gzip compression. This seemed to do the trick.

As the add-on description states, this is still in beta, so expectations maybe should be tempered. I think it shows potential. Anything to speed c5 page loads is worth pursuing. I am working through some css issues, That's not a complaint, as it seems any solution designed to compress css files requires a bit of tinkering. If I can't figure it out, I'll submit a request. The developer has always been responsive and helpful with my support requests for some of his other products in the marketplace. Even with the js compressed, the page loads show improvement. And it's free.

Using the Whitespace theme with this add-on will cause your site to display incorrectly until you login. (It appears to "lose" the css until you login.) I suppose you could fix it, but be aware of the issue in case you're using this theme.