In addition to the privacy issue raised by members, I tried the service and had the following notes:

The first thing for finding coins is that you need to search for the coin manually and this takes a long time to find the desired coin within the long list of coins.

secondly:
Bitcoin exchange rate differs from the market price today, as the exchange rate was BTC=25293$, while the price in the market BTC=25950$ This means that the user will lose about 650$ for every 1 Bitcoin.

Also there is a difference in the exchange rate of BTC to USDT(Omni) and BTC to USDT(Tron) as shown in the pictures:

https://www.talkimg.com/images/2023/08/25/MLQXZ.jpeg


https://www.talkimg.com/images/2023/08/25/MLMc3.jpeg

I chose 0.1BTC as a trial, but when I complete the transaction, the final invoice shows the minimum payment as 0.00022BTC instead of the 0.1BTC I use for exchange.

https://www.talkimg.com/images/2023/08/25/MLIX1.jpeg