I purchased this portable refrigerator for a van conversion. I think it represents a good value for light use. Comparison refrigerators of higher quality are over $1000.My first observations for performance were good. From 70° to 34° in about 15 minutes on the refrigerator side-- phenomenal really. And then the freezer portion took about 35 to 40 minutes to get down to zero.The longer this runs, the less the differential there is between set temperature and actual temperature. At first the fluctuations were fairly large – in the 8 to 10° range.Initial usage showed pretty close to 80 watts of power being used. Once this is up to temperature and has been running for a while my average usage has been around 35 Watts. In eco-mode it can drop down to 24 to 25 watts on 12 volt.The biggest thing I notice on eco-mode is the temperature difference is greater. 35 Watts on "Max" mode is not bad though.The unit certainly runs a lot more than my standard household refrigerator, and I hear the fan more than I hear the compressor. There are some minor vibrations, but nothing major.I actually think once this is loaded up with food it will probably cycle less, as the contents will give back some cold. I also think it would benefit greatly with some extra insulation. I'm going to do a pull out drawer in my van, and will add 1 to 1-1/2 inches of some rigid foam insulation, which should help the cycling. I think this is running probably half the time, as opposed to one third of the time. That's what I recall from my higher end fridges from previous vans. Bottom line is it's just not as efficient at holding the cold.The app works very well, and was very easy to connect. About the only thing I'd like to see is cumulative energy usage for the day, but I have some other meters that can determine that.I did buy the five-year assurance plan, just in case this unit decides to fizzle out within a few years. My understanding is they last about two years of heavier use before the compressor goes