I picked them because of their good reviews on HomeStars. Everything looked good at first. My job was a replacement of the power system (motor, chain etc) The technician, Mike, arrived on time (even a few minutes early) and finished when promised. Then he walked me through the differences from my old system.
Later, I found that he left the garbage (packing materials) in the garage, which he really should have taken away. STILL, that would not have caused any concern.
When I found out that the new system could be WiFi controlled, I emailed the contractor asking how to disable this feature. Their reply from Grace totally missed the point, and she just explained how to CONNECT it to my WiFi. I responded that I wanted it DISABLED, not connected, but she misread again and again replied on how to connect.
After the third request she repliEd "contact 1-800-528-5880 Liftmaster customer service line." apparently still not having actually read my query or not able to understand a simple question.
So, field service OK - Office help on a question, NOT SO MUCH.