Firstly, I will start by saying I am pleased with the turnaround times. My brother and I had both ordered an S8+ with Telus Mobility. When I wanted to unlock mine, I had accidentally taken the IMEI off my brother's box, which in turn resulted in the wrong unlock code being ordered.
Anyway, I followed up with Cellunlocker, and although they were not able to process a refund for the order, they were able to reprocess a new order, which took one day. Now my phone is fully unlocked, and it was definitely a low cost compared to other sites.
Cellunlocker has been an ongoing service for a long time, which is why they are reliable and have had constant good reviews. I would definitely recommend this to anyone. A good way to free up your phone and dealing with a trustworthy company who does what they say.
Bottom Line: Yes, I would recommend this to a friend
