Yes if you are going to mine with your GPU’s and letting them turn your PC on then yes it is trustworthy. I have tried it with my bunch of laptop which I don’t use anymore and upgraded for the specific mining. They are mining the Zcash on my laptop and I’m liking the smart miner operation they are using. You can simultaneously share the hash rate for the mining operation which is automatic process and thus leads t generation of bigger volumes of blocks solving capacity. You earn pretty good rewards with this because they are easy to mine and you don’t have to do much but just put the laptop awake and the internet on all the time.
This is my experience, I’m not fond of mining operations but I tried it and turn it on in between just to have fun. But this fun has given me lots of profits form the minergate. Just to add to your knowledge NIcehash mining also work on the same principle and you may wanna try it out altogether to see which one gives you best algorithm. :-)
Thanks that helps. Nicehash looks cool.