I have the advanced door from that company & I love it! The only difference in the basic model is that you have to adjust the timer as daylight changes. The company that makes it is from Lancaster County PA & they are awesome when you ask questions. Mine worked flawlessly for 4 weeks & then last week, a day before I was going away, it did not open in the morning. They answered my email right away & told me to call them immediately. Denise helped me fix it over the phone & it worked great while I was away all weekend. Seems the electronics can get knocked around in shipping (they feel they have corrected that problem) & it was an easy fix. I only bought the motor, not the whole apparatus, but I think it's the best around. I liked the chicken guard, but the light sensor would not have worked for me. The auto time change on the advanced model is fantastic. Their customer service is awesome! Good luck.