I tried accessing two b1ack Exchange website links using different devices:
https://b1exch.io/ via Firefox Focus (smartphone), and
http://blckexcrpdmau6y7teqxmf6yiyg7xn7qlphjeaxgyimxokz623w4tmqd.onion/ via Tor Browser (desktop PC).
Unfortunately, the clearweb link seems to be experiencing an issue (host error) when I tried to access it.

On the other hand, the Tor mirror was accessible after completing two CAPTCHA tasks.
Below are some impressions I had while using b1ack Exchange, along with a few questions and requests that the b1ack Exchange development team might want to consider.
◌ Honestly, I feel that the font size used on the b1ack Exchange website is a bit too small. The layout seems more optimized for smartphones and feels less comfortable on desktop PCs. That said, the overall instructions and menus are still fairly clear.
◌ The number of crypto assets available for swapping is still quite limited. However, for me personally, as a BTC and Monero user, its already more than sufficient.
◌ When the coin selection list is open, it would be more intuitive if it automatically minimized when clicking anywhere else on the page, rather than requiring the user to click the menu again to close it.
◌ The fee information is presented clearly and transparently.
◌ The refund address feature is also very helpful. However, when a swap fails and the BTC deposit address and the BTC refund address are different, I initially wondered whether this mechanism would resemble a mixer.
◌ As is well known, Monero addresses are quite long, are there any plans to add a feature that allows users to scan addresses via QR code?
I recently swapped BTC for Monero. The process requires three blockchain confirmations before the swap is processed. My transaction took approximately 1 hour and 45 minutes from the first confirmation to the moment the Monero arrived in my wallet.


Overall, I am satisfied with the outcome. The only drawback is the length of the waiting period, due to the requirement for three Bitcoin confirmations, plus the time needed to send Monero to the wallet.