Works really well, just read the instructions for troubleshooting
Easy to install and set up the timer, and register the cats’ microchips. I had two problems that I managed to solve with the included instructions. 1) The cat couldn’t get in. Sometimes yes, sometimes no. It took about 3–4 seconds in the tunnel to scan the cat. My cats don’t have that kind of patience. The problem was that "Extra security" was on (EON), and I needed to set it to EOFF. 2) The timer’s curfew times didn’t work the first day. I had to reprogram them and they’ve worked ever since.