I used Cell Unlocker twice, in 2014 and just now in 2018, and i couldn't be more happy with their service. First time they unlocked my iphone 5 (blocked on Fido, Canada) in only a day. And this time they unlocked my iphone 7 ( Tmobile, USA) in 3 days, i placed my order on Friday afternoon and the phone was unlocked on Monday afternoon. The only thing is that this time i haven't received emails to confirm my order and notify me that my phone was unlocked but i was able to follow the process on their website so not a big deal for me. I'd definitely recommend them and use them again if i need it.