Is USDT worth buying?

I'm considering investing in USDT, but I'm not sure if it's a good choice. Could you please provide some insights on whether USDT is worth buying? I've heard about its stability and usage as a medium of exchange, but I'm also concerned about the risks involved. What are your thoughts on its future prospects and the potential returns I could expect? Could you also elaborate on the factors that could affect its price movement? Thank you for your time and expertise.