I think the idea behind Tether is quite innovative. How they plan to hold a 1:1 ratio to USD though, especially during market fluctuations is an idea I cannot seem to understand. The crypto-currency market is unregulated and highly volatile, as such, I feel as though both up-and-coming and existing cryptos should always be fully transparent. Any hint of suspicion or fowl play would act as a deterrent of my investment. I am fairly new to trading crypto and as such, based on my research and the online reviews from reputable sources I decided to stay away. It was just one of those things that I never got into, or believed in enough to get into. I am a firm believer in the concept "hodl". If you have a good coin and did your research, you'll be fine :)