I have similar Cyberpower UPS' and started doing research finding a good alternative. I thought since I got it from Costco I was getting a decently quality item

I have similar Cyberpower UPS' and started doing research finding a good alternative. I thought since I got it from Costco I was getting a decently quality item but searching on Amazon and their sponsored ads made me realize I made a mistake buying it. I'm always leery when a product is "sponsored" on Amazon. Looking through reddit and other forums, seems like APC Prosumer highend versions are okay (so not all APCs) and Eaton/TrippLite UPS'. Some say Tripp Lite isn't as good. I just went to CDW and bought x2 Eaton 5SC model that is sine-wave. They are much more expensive, 1500VA was $420 vs the CyberPower I got for about $180. Eaton has cheaper versions but I dont see sine-wave as a feature so I assume it might be more simulated sine.