I've only been on a few hunts in the last few weeks since I picked up a Magellan Meridian GPS off of Ebay. But, in all of the cases so far, I have ended up literally within three to five feet of the cache when my coordinates match what is posted on the cache location page.
I read about people looking around and being 15 to 30 feet away and having to search for a while in an area because they're so far off. I know that the WAAS enabled capability helps accuracy, but I have been stunned so far with it's ability to put me right on top of the caches that I've looked for.
So, have I just been really lucky, or do I only read about the people who end up off the mark?