We read all reviews (good, bad & ugly). My two cents ... museum is well worth it!!
We walked over to the museum from our hotel. We arrived early and walked a couple of blocks north, south, east and west of the museum to get exercise AND find nooks and crannies not mentioned on posts we've seen. The surrounding buildings are beautiful and we were able to take a bunch of shots / pics that are not normally posted by fellow travelers.
Museum opened at 8:30 am. We paid $ 9 U.S. a piece for entry. We spent 2+ hours in the museum. The Jade pieces were amazing (both in size and in number), the displays outlining time lines / growth curves of the native people were accurate and the staff stepped forward to answer our questions (bi-lingual!!). I saw a couple of Trip Advisor posts saying Jade isn't native to Costa Rica (huhh?), lighting could have been better (this is true, the track lighting spot lighting the displays in SOME cases could have been readjusted) and 'they' don't speak English (wrong, wrong, wrong - all displays were written in both Spanish and English / all staff were bi-lingual on my visit). We stayed 2+ hours and enjoyed all displays / are still amazed at how large this Jade collection is.
This is a FOR SURE place to bring children. There are several interactive displays that allow kids to touch the various stones / surfaces of stuff they are looking at and a couple of displays that allow the kids to hit a button to see what kinds of animals / birds live in the rain forest.
All in all; I would recommend to anyone that wants to get a better feeling for the history of Costa Rica (Jade), harvesting of both minerals & food and spend a couple of hours learning something new. I know one post said 30 minutes in and out. Disagree! Plan on 1++ hours at least.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.