I bought this after storms took out the power knew it was going to be a few days, the price was lower than some other generators but this has proven to be great. Runs 10-14 hours on 1 tank of fuel. The oil levels must be kept right or it won't start or will shut off after a few minyes. The perfect amount of oil is almost 3/4 of the included amount, it doesn't say that anywhere but it needs to.
Lost power after a tree limb ripped the power lines off our house. Normally wouldn't be a problem except the spring thaw and rain from the previous day was flowing in my basement, so I needed the sump pumps running. Picked up the igen2550 once the store was open, had it running within minutes and saved us from a flooded basement.