Interestingly, its a fork of litecoin (a copy of the Litecoin blockchain at a point in time, VTC Team then they went their own direction). Have a look at their reddit page, they have quite a vibrant community that drove the price a few months ago and must have good devs... That said, long term why would I chose VTC as my payment solution over Litecoin? If you believe that their devs will innovate and deliver and their PR can promote the coin better than LTC then its a value buy vs. the LTC price. Alternatively, if LTC continues to succeed, then I might chose this as a less popular, cheaper alternative with similar tech.