Does anyone use PrestaShop on their ecommerce site?

Hi everybody,
Is there anyone here who uses PrestaShop on his ecommerce site? I consider it seriously as my e-commerce platform. The software is free, but some of their themes and modules are not, and most premium modules are quite expensive. However, it can be used without the paid modules and can be installed for free on any web host. Could you share your experience if you use it? Thank you!