There are number of factors that prevent a 5 star rating for this product.
Firstly the illustrations in the instruction manual are very hard to decipher and in my opinion almost illegible.
Second , there are two wheels that need to be assembled to the chassis of the washer but only one wheel nut and bolt was packed.
Thirdly , very difficult to get the engine to start at first,this was due to the vagueness of the instruction manual and the spark plug flooding with petrol.
However, once these difficulties were overcome the performance of the washer is excellent, light weight and very maneuverable. Would recommend but I suppose the real tests of reliability and performance. can only be measured over time