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.
Depends on what type of crypto user you are, for your information USDT can't be used to store fund that is from illegal entities, if you are involved in any hacks or illegal stuff you need to stay away, use decentralized stable coin instead, for this DAI got you covered