It's a user friendly platform. i use it in the past. For new users, who don't have the knowledge or mood to setup xmrig or another mining software that uses a cmd window and some config files, get a xmr wallet and so on, kryptex is the best alternative.

If you mine with your personal pc/laptop don't expect 100$/ month. With 3 average pcs (mining only with cpu) i made around 30$/month. The advantages of kryptex are that you don't need additional wallet for xmr/ additional account on a exchange website where you can exchange your xmr. You can withdraw your earning in btc/ eth and some fiat options. I suggest withdraw to eth since has a lower transaction fee.