Alexa integration works great. Having to say "tell Nexx Garage to" once in a while is a small price to pay for being able to tell if you accidentally left your garage door open (and close it) from the furthest reaches of the internet.
The unit works great, I love being able to tell the status of and control my garage door when I’m away from the house. This kids have the bad habit of leaving the garage door open, I can’t tell you how many times I’ve woken up to find the garage door sat open all night. Installing this remote was easier than training my kids to close a door! The Alexa integration was quick and easy.
Support is very responsive and seem to be interested in helping the customer. I highly recommend this product and if you do have setup issues I'd suggest reaching out to their support before returning.