I've had a number of phones unlocked by cellunlocker.net over the years. Never had a problem. My last unlock was a Moto G4 Plus which wasn't identified specifically in their list (G4 only not Plus). I was able to ask for confirmation and get a response almost immediately via their online CHAT option. Placed the order and a few hours later I had the code and unlocked my phone. Doesn't get any better than that.
The cost to unlock my phone was entirely reasonable and substantially less than what I had found locally or at other sites on the Internet. I would have no problem recommending them to friends, family or total strangers.