I got a Zune on clearance when they were shutting down the whole mess (a nice fugly brown one for 80% off).
Build quality was rock solid, UI felt premium, and it mostly just got out of my way/let me play tracks. They were great little media players, as good as or ahead of the equivalent iPod.
Hardware was really good out of MSFT at the time, although when mistakes were made (e.g. the RROD Xbox 360 debacle), the broader organization seemed allergic to making thing right.