You can check our online docs , faqs and videos to get more idea regarding our theme.
Yes, Marcedo works fine with variable products along with all other defaults wooCommerce products.
Some users have problems with GoDaddy and PayPal IPN/other gateways such as Authorize DPM. This is purely a hosting problem due to their non-standard security measures. Issues need to be solved with GoDaddy directly, as it is out of our hands.
If you find a fix or a workaround for IPN issues and GoDaddy, please share your experience.