I decided to buy the next model up from the same company, not knowing in the mean time it had been bought by a PE company and the quality had gone to shit. The mower is bigger, but the engine is smaller and they are notorious for blowing a head gasket any time the mowing blades stall out.
I was thinking of starting a web register of all PE PortCos (private equity portfolio companies) so people would know to treat the products with caution as the main way of reducing costs seems to be a) sacking people and b) cutting corners on product quality.