Great product. Amazing support! I bought the EZ Start Flex for my home AC so I could use a smaller portable generator to run my home. My 4 ton Trane AC was pulling 119 inrush amps on startup, and the unit dropped that to about 23. Pretty amazing results. The unit is so much quieter on startup too! Shortly after install, unfortunately, there was a failure of a component in the device. Using the bluetooth app I pulled the diagnostic screen and sent the data to Micro Air at 5:45am on a Friday morning. Within 5 minutes I had a text from Matteo, one of the engineers, who identified the issue, called to provide a resolution, and processed a warranty replacement with overnight shipping. Stuff breaks, but how a company handles customer service matters. Installation is very simple and any DIYer can easily handle the install. And support is available to answer any questions. The new design is very small, making installation iinside the AC electrical access panel possible. With the EZ Start I can now run my home on a much smaller generator, more than offsetting the cost of the unit. Great product. Great service. Very happy with my decision to purchase.