I am very impressed with what you did, and thank you for sharing the back stories about dealing with manufacturers and the real life pains of troubleshooting customers.

This is real, tough entrepreneurship, and I am very surprised by the number of implied criticisms about how not perfect your product, price, positioning...

The number of issues you solved already, the fact you have a happy installed based is impressive. Further iterations will make it even better, feels like you've done the hardest part.... Congrats.