When our tech (Jerrod) arrived, he quickly diagnosed the issue, explained it and patiently endured my 20 Questions (having run large engineering groups, I still fall back into old ways). A1 had him well equipped with a mobile tablet and he quickly priced what was needed, scheduled a delivery to arrive while he did the prep work, and had me up and operational in a few hours. Then before he left, he even took the time to help me re-program the cars to the new system. All in all--very cool on a very 100+ degree hot day!