I checked things out.
It is a generic implementation of quick exchanges without signup (coin swap).
I liked that it has a decent list of coins to swap for, specifically including Tether and on Tron chain (TRC20) which I prefer using myself.
What I didn't like is what I don't like in similar services as well. It's the hidden fee through the exchange rate.
For small amounts this fee goes through the roof. For example to sell the minimum BTC amount which is roughly 0.001286
BTC which should be worth $80.31 you'll only get $76.33 ($77.83 - $1.5 network fee - ?? service fee) which translates to roughly 3% fee.
I couldn't figure out what the 0.7% service fee was and how it is calculated in addition to what is already being deducted through the lower exchange rate.
And majority of the links at the bottom of the page are broken which doesn't help the business (the site looks rushed and incomplete/broken).
They show the link to the page you are currently on. For example if you are on
https://priamex.com/en/how-to-use page the FAQ link shows
https://priamex.com/en/how-to-use#