Reliance Home Comfort

This is the third technician called in for the 3rd time for this month alone, for the same service. I've lost hot water everytime. My third call was less than 24 hours from when the previous tech left. The techs are all courteous and polite...I would rate them all a 5 if it were based on them alone but I am reviewing the entire experience. I would prefer for someone to figure it out and properly understand what is going on with the unit. Since February of this year, I've had 6 technicians called out for this unit. In my opinion it's a piece of junk. The worst part is that I am a tenant and can't make the decision to change the unit altogether and get something different. Today when I called in, the CSR gave me an arrival window which I was able to he home for, she took my contact info for the tech to call me when on his way....well he showed up 90 minutes early without a call because he said there was no number attached to the order. I don't know what they do in that department but the CSR'S could do better in properly taking down information. The previous times they called the incorrect number despite verifying my number at the time of endig the phone call. I am not impressed with Reliance. I really hope I have no need for them to be called in again. Good luck if you are with this company.