Summary: I bought one of these about six years ago and found it very effective. It had plenty of power to cut through thickish stems and the battery lasted well. As the years rolled on, the batteries started to fade and did not last very long between charges. Two years ago, I looked around for some new batteries and found that I could buy a new hedgecutter with two new batteries for the price of two new batteries.
Summary: After about three years this has packed up. Was never happy with it - great for spindly bits of trimming but not serious trimming - and I don't mean cropping. I needed this plus hand shears to do any serious work. Battery charge never seem to last long. Also can't just trim the hedge on a whim - have to re-charge batteries first as they never seemed to hold charge over time.
Summary: This is a light and compact hedge trimmer suitable for relatively small to medium sized jobs. The battery life is not great, however I suspect this may be due to the fact I am probably covering a larger area than the trimmer may be designed for. It is an extremely easy product to use.