Having owned around six different dysons (including the washing machine) over the last couple of decades, I can safely say that in general they are rock solid.

Having owned around six different dysons (including the washing machine) over the last couple of decades, I can safely say that in general they are rock solid. In fact they are pretty user serviceable and can replace quite a few parts yourself should you need to. In fact, the only time I have had an issue is on one of the first generation hand helds where the battery pack contacts became slightly loose, but a phone call to dyson support and a wipe clean with vinegar on the contacts resulted in the fix. Anecdata is fine but you can have both directions, and I'm not sure a repair shop observing seeing popular vacuum cleaners is the best place to start from.