Cellunlocker did a fantastic job unlocking a Samsung S8+ for me that was originally a Sprint phone. Sprint does NOT make it easy to do this! As I said to the technician, "you were doggedly determined to succeed!" In spite of some irregularities in the operating system, possibly caused by the previous owner, I have to give them a 100% rating of "PHENOMENAL" as this went FAR beyond providing an unlock code!
Bottom Line: Yes, I would recommend this to a friend