Bests & Worsts Reviews from Amazon

We live in an area where our power has been going out more frequently each year. So we tested five units on generator power. With the generator running (Westinghouse 7500e), the test is with approximately 3000 watts running the house...... APC BE550G continually clicked over to the battery (back and fourth). CyberPower CP1000AVRLCD, CyberPower CP1000PFCLCD, and APC BR1000G all accepted the generator power until I turned on the microwave. Then the units continually clicked over to the battery (back and fourth). Tripp Lite Smart1300LCDT was the only one that accepted the generator power and stayed on the generator power even when I turned on the microwave. In other words, the Tripp Lite did not continuously flip over to the battery and back again, it stayed on the generator power. We went with the Tripp Lite because the AVR (Automatic Voltage Regulation) was the most consistent and stable of the group we tested. If running sensitive electronics on generator power, you might want to look into 'on-line' UPS. Using Imac I did not have to install the software.....it automatically recognized the unit. I love Amazon, but was sad to see the item was 'non-returnable'. We bought it from Staples because they matched Amazon's price and we could return the item just in-case something didn't work right. **Edit January 2015: Had it for 1 year now, and still very happy with the product. Also noticed that Amazon has changed their return policy, and is now allowing the product to be returnable. **Edit January 2016: Had it for 2 years now, and still very happy with the product. Original batteries are still going strong.