We've never tried this (use all our
DVC points for
Disney vacations), but we have been to Costa Rica three times.. most recently just two weeks ago. I haven't stayed in Guanacaste region, but here are two other recommendations:
Hotel Bouganvillea in Santo Domingo (near San Jose) is lovely and reasonable ($100/night). Great place for your first and last nights if you are flying into San Jose. Gorgeous gardens, nice pool, good food, near InBioparque and Britt coffee plantation/tour.
Try Arenal Springs Resort and Spa near La Fortuna. Not in any of the guidebooks yet. Google it. Beautiful thermal springs pools, wet bar, spa, gorgeous views of the volcano from every room. $145/night includes a full breakfast for two. They greet you with a cool towel and a fresh fruit drink when you arrive. Dinner at the hotel restaurant was not great, but breakfast was good and the thermal springs pools are amazing.
If you get a chance to visit Earth University, they offer really interesting tours on sustainable agriculture in the humid tropicals. Hacienda Pozo Azul in the Sarapiqui region has a wonderful canopy tour (zip line through the rainforest) and horseback riding.
Have fun wherever you end up!