The folks at stylemix themes have been very responsive to any support issues or general questions I have had. I especially enjoy the live chat feature, where Axel and Felix are always available to help. Thanks!
Customer support response time is more than reasonable - nights/weekends too. They have been very helpful and patient. I am not a WordPress expert and have needed guidance with certain customization's. The theme meets our needs so far and again support has been key with helping us get to where we want to be visually and functionally.