I got this heater in February 2021 and used it for the tail end of winter. There was a problem where it would periodically overheat, especially with the fans on, which makes having a thermostat and timer pointless. It's unobstructed, in the open on its feet with nothing around or above it and plenty of space for the vents below, and I've kept it dust-free.

Fastforward to today, where it overheats within a minute of turning on the fans, every time. Currently I am the proud owner of a very expensive, decorative aluminum rectangle.

Even better, if I'm reading it correctly, there's only a 1-year warranty on them. You win, Delonghi, for selling something that just barely outlives the warranty. Suffice to say, if I can't fix it and if I do have to replace it, it'll be with something else.