Have a small Stihl petrol chainsaw (30 cm sword) and an old English E chainsaw (also 30cm sword). The Tonino Lamborghini electric chainsaw (40 cm sword) but has surpassed all expectations. Have just after the arrival of the saw, by registering with the German branch, can increase the warranty to five years. The chainsaw has been eaten by all logs, in which the Stihlsäge had already jammed. Easy to clean Super and a very practical chain tensioner without any additional tools.