Costa Rica

Was wondering if there are any other pros in Costa Rica. I just booked an apartment in the city center (near the Sabanna) for somewhat cheap (~800/month), will be staying there at least 3 month starting in May. The flight was dirt cheap as well.

What should I know? How is cost of living (groceries, gyms, dinners etc.) apart from rent? Is there an expat culture or is Spanish heavily required (I am learning 😀 ). How is the culture towards foreigners and what should I expect in terms of live poker?