I was excited to come across WooCommerce for my needs, and I have purchased their Booking and Points extensions (relatively expensive at $300, plus more extensions I will need, plus customization, in order to make these work for me).
So far, I am rather underwhelmed by Support, especially given how relatively expensive the extensions are. The forums are full of mostly unanswered questions, and I find forums the best support tool since often others have experienced the same issue as you and you can often find an instant solution rather than having to submit a support ticket.
So far, submitting a support ticket results in at least 2 days in between responses, which is highly inefficient especially given the back-and-forth that is generally needed to solve a problem. Furthermore, given all the products they have, their documentation and forums are very difficult to browse or search; not organized as well as they should be.
I'm seriously considering giving up on WooCommerce, which is a shame because they otherwise seem to have a lot of the products that could be useful for me.
I recommend people also check out Easy Digital Downloads for a similar customizable WP eCommerce platform. While I was unable to use them (don't have booking plug-in I need), there support was so much better (great forums and very responsive, even by their main management) and their pricing better across the board.