I would bet you 99.9% of the users have had nothing but good impressions (and I'll bet even higher than that). So no there is not a lack of spit-and-shine, just some honest to goodness bugs that are often because of customizations and changes. The issues in Leopard have been no worse than your average point release upgrade.
Its so funny that people seem to have latched onto this file move bug as an "OMG, LEOPARD IS SO BUGGY AND AWFUL" thing when even the press release itself state that this has been confirmed as far back as Panther. What does it have to do with Leopard?
I have to admit I am more impressed as I use it -- this is my first full day working on a leopard system, and I am impressed by the speed and responsiveness relative to Tiger, and I may warm to Spaces yet -- its implementation is slick, and combined with the other OSX interface niceties (bouncing icons to tell you input is needed) it seems to really work well.
Sure there are bugs -- stacks, the embarrassing issue of Time Machine not working with Aperture, but as a point-oh release its pretty good.