I like that it's free for open source projects, so you don't have to pay anything in order use their services or host your project through them! They are very nice with customer support as well- they're always friendly when helping people out even if its something super easy (like me asking "How much does this cost" haha). We've been using Quantoz quite heavily since launch because of how helpful/easy our team has found dealing wth questions about hosting vs building products from scratch etc.. But honestly most any question can be answered here quickly & efficiently without needing to contact someone internally at quantiz personally which was really great too =).