It simultaneously lifts two Bosch jackhammers (1100w and 1500w) 7.5J and 13J comfortably in ECO mode, without the overload light turning on. It is relatively quiet, especially in ECO mode, which is very important when you want to focus on work and not have a headache later. At first, I struggled to get it started, the instructions say to always start it with the rotary switch in the choke position (not on), which is not true when it's warm. After the first time, it starts right away. Despite its size, it is easily portable. I use it continuously for 6 hours with two compressors without it overheating, and it consumes less than 5L of gasoline.
The only drawback I find is that it does not have a built-in hour meter to accurately track oil changes, and I had to buy one from the market and adapt it to the spark plug cable (cost 10-15 euros).