Simply the best.

I tried a lot of paid and popular plugins, this one(especially in the pro version) is just perfect.

Almost all others has problems with caching, integration and ugly old-fashioned pop-ups.
The official woocommerce compare plugin is totally uncontrollable, perhaps only for their theme is fit. I tried some from Envato Market, but the problems remain the same.

Thanks for the good work and quick support response.