Their low-end consumer phones, maybe. In my experience their smartphones have been as poorly-built as everybody else's. My Nokia smartphones were the only phones I've owned that didn't still look good after two years, with discoloured plastic and loose parts.
My last Nokia ran Symbian. Lasted for years and years. Sure the case was pretty scratched up, but I didn't have to replace it every time I dropped it on the ground.
I've been working at a large Finnish company for a year or so, and there's a lot of people with creaky old E90's. Discoloured and floppy, but they still work great.
I think it is part of the deal with moving-chassis phones (hinges and slides) - it's very hard to make them durable and still light.
