Currently, USDT daily trading volume is over the Bitcoin trading volume and fourth highest market cap according to Coinmarketcap. My opinion is We can't trust the centralized stable coin to keep the money. Also, news around the USDT is not good, and it may be shut down by the authorities.
What is your opinion about the USDT coin?
I use the DAI to keep the stable value & will shift to the SAI in the near future where the money I'm not investing.
I trust USDT and USDC, in addition I do not trust any other stablecoins. because USDT and USDC have been appraised by the SEC and legal agencies for prestige and technology mechanism, and it is completely qualified. When we use USDT, there is no need to worry too much about manipulation or fraud. As for the other stablecoins, I am not too interested and do not want to use it because the volume is quite low.