I had problems with mine leading to the electrical contacts smoking within 10 seconds of starting up. Seller rang me up and says he sells loads with no problems. Offered full refund and pickup.
I would like to think it is just my bad luck on this occasion.
Having said all that with hindsight for the sake of another £50 I would go for a decent make. The lead is very short, the telescopic handle extends to below midget reach and is flimsy and the who thing a bit cheapo.