I spent a month there in February of 2006. Did a week at the beach and a week in the mountains.
I'm trying like hell to remember the city names. They weren't the tourist locations -- we went native.
But my history with CR goes back much farther than that. We've been in the free trade zone in San Jose since around 1993. They're great people and we plan on being there for a very long time.
Arthrocare ring a bell?