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:


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 you put in for exchange.
