The Dyson V15s won the test field over 400 euros, scoring points in the test above all with the numerous interchangeable nozzles supplied and a very long battery life. However, the fact that the button had to be constantly pressed during use and the fresh water tank had to be refilled comparatively frequently without the appliance letting you know was an inconvenience...

Overall, the Mach V1 Ultra is a sensible investment for anyone who needs to clean large floor areas on a regular basis. It shortens cleaning time by about 50 per cent, which is an excellent balance for us. However, the machine still has some faults that make the high price of 800 euros seem unjustified...