I had two apprentices arrive at my home. Work was completed to my satisfaction.
Clearer words of communication and expectations when initially making arrangements are preferred but not a deal killer. No maks were worn until I brought it up to the owner while the work was being done. Also, it was not initially mentioned again, until I asked if these were licensed plumbers and was told they are apprentices.
All in all, work was good. All done in a timely manner. Yes, I would use their service again and would also reccommend them. My job was small and only took approximately 2 hours.