In fairness, this machine is decently built and the price is not unreasonable, but I do have 2 quibbles with it:
(1) On my one, the motor drive shaft is slightly off-centre, so that the whole of the mincer apparatus wobbles slightly when in use. When fully tightened up, it's only moving by a millimeter or so, but it does seem rather crude.
(2) As a sausage-maker, which is what I bought it for, they only supply a single stuffing funnel. The published specs don't tell you what size this is - but it turns out to be around 30mm, which is right at the top end of the range. The largest collagen casings readily available in the UK are 32mm, and these will only just fit. Additionally, the taper is considerable, so you get only make 5 or 6 sausages in one run before stopping and rethreading. An additional (smaller) funnel would have cost almost nothing - but they don't supply one.
In short - a fairly decent mincer but not recommended for sausages, hence only 3 stars