We’ve been twice. Once DH and I did the Caravan tour, flew in to San Jose. Great time, very active. Saw lots and loved it. Second time, did an all inclusive resort in Guanacaste, flew into Liberia. We had then 3 yr old DS with us. It was actually kind of boring even though we did a few day trips. Of course having a 3 yr old limits you a bit, he just wanted to play in the pool or on the beach (I am not a beach person) I found staying at one resort very limiting and it was too far from any volcanos and the national parks I wanted to see. We could have planned to stay at multiple places but at the time I wasn’t a very experienced traveler (still not but better) and didn’t feel comfortable trying to plan it.