For everything really - design, build quality, and customer care that truly is second to none. Couple years back I had a problem with my dyson. Because I live near their UK HQ, I took it in to them. A few days later they called me to collect it, and the engineer who'd worked on it came out to reception to show me what he'd done....which was pretty much a complete refurb. Although it was out of warranty, he said they could tell all the the problems were reasonable wear & tear, so they didn't even charge me! Fantastic.