This is a great bit of kit, especially for the £69.99. I used regular chainsaw oil straight from the can with a steady hand, so no need for the bottle supplied. I initially used it to cut back overgrown leylandii conifers and I was very impressed with its performance. A fully charged battery lasted for two+ hours of use. Constant but intermittent oil discharge and chain tension checking proved invaluable to efficient cutting. The only minor issue is that debris continually built up under the shroud covering the adjustment & drive mechanism, which needed to be removed manually with the battery removed of course, but then again that happens with all my chainsaws.