Not at all. You cannot sell your keys there. They offer one deal at a time (presumably agreed with the dev/pub), during 24h, with good discounts.
Unfortunately (for me and others), those deals only include Steam keys.
Sorry, what I meant was more whether or not they are a proper legitimate business above the board, a scam operation, or somewhere in the grey area in between like G2A et al. I wasn't thinking specifically about the ability to sell keys, but rather how it works from the perspective of someone purchasing things from there not wanting to have their games revoked due to coming from illegitimate key sources etc. :)
If their keys are authorized direct from publishers then that's probably not a problem. The strange name and TLD just has me cautious.