The best thing about this product, in my opinion so far has been how intuitively easy everything was for me when I started using them! There are not many apps out there like these ones with such good customer service support from their team members who really care what they do (and have great English skills). Nothing at all yet; however if something comes up we will definitely contact critons via email/phone call because everyone knows exactly where things stand right now - no one can be left hanging without answers anymore!!