Im not a person who writes a review, but you guys deserve this.
I have been tested many (pro) cart plugins. I can say this is the best.

+ They are keeping developing and updating their plugin.
+ You can change any part of the plugin on the admin area.
+ They say floating cart but you can also use it for the regular cart (mini cart) as well.
+ compatibility with themes and many other plugins is very good.

Good job.