I used this service.
Works like a swiss watch. Immediately after the first confirmation, you see the payment transaction.
The process took me to confirm the two blocks on the BTC blockchain, about 25 minutes
The interface is convenient and clear, there is Russian, but personally to me in this service English is easier.
Anonymous payment is a real and useful solution.
Worked with other exchangers, they give out private keys that need to be inserted into the wallet. This is an additional problem.
Here implementation liked more.
Bad reviews are not found on the network, although they are already 3 years old.

This is a short version of my review
https://bitcointalk.org/index.php?topic=5121282.msg50228821#msg50228821