Tether is the most popular stablecoin with the highest liqiudity for stablecons. Many people use it and they have to trust it.
These are merely good points about the USDT, but as good as it is, do you think you can entirely trust it? Well, it is what I use with my exchanges as we all know that many top exchanges do not allow the USD in many of their transactions, so I never had the chance. Had it been I have the choice, I would not use USDT, I would only be converting my cryptos to USD back and forth for safer reasons.
As we all know, the USDT is being claimed to be pegged with the USD but in reality, it is not so, the value is not always $1=1USDT unless we are deceiving ourselves. And there was a time that the value shited significantly and they were just apologizing and citing reasons. But this cannot make me trust it totally. Though it is good and has proven itself to be somewhat safer, still, no one knows the worst that will happen tomorrow.
This is even as it is not decentralized, anything can happen due to this.