We bought one of these - a Triflex HX1 - in November 2020. In April 2023, six months out of guarantee, the suction and brush head failed. Miele repaired the appliance at half price, I think a nod to its newness.. In October 2023 one of the batteries would not take a charge. Miele said they could provide a new battery for 169 gbp. We managed with one. In November 2024 the suction failed again. The appliance was now four years old. We contacted Miele customer services who were less than helpful - dismissive and in denial that their appliance could be faulty.They suggested that the problem was poor maintenance and this had been identified in July 2023 when the first suction failure repair was carried out: the service report we received made no mention of this. It seemed like buck-passing. I have seen similar comments on Mumsnet about this appliance and the poor standard of customer service from Miele.