I've been using this mower for the past 6 years, and it is a wonder. The only maintenance that's been required was to replace the batteries after 4 years. Other than that (which is to be expected with rechargeables), for the money & the fact that it is electric, it's been a great machine. Surprisingly powerful--it seems to cut with the same ease as a gas powered one the same size. If you have a small lawn, this is all you need. Even if you have a larger lawn, I would recommend this as a fast "cut-in" mower--just as powerful as gas, but much quicker to just grab & go.