My experience was great. My window was from 12-4 so I greatly appreciated the call I received at 3, telling me that John was delayed at another call and would most likely be another hour, which was fine with me. John called at 4 and said he was on his way and would be at my home at 4:15. John is very pleasant and professional. He performed a routine A/C maintenance which was covered by my contract; no other charges were incurred. I requested an invoice copy/work report via e-mail; I haven’t received this yet but am sure it will arrive soon. I am a satisfied customer and would definitely recommend R.J. Groner and John to others.