Pros: beautiful ocean views, panoramic pool is mildly fun, tho packed, friendly staff, pathway to punta sur very cool, educational, a great way to see the south end of the island if you are staying in downtown isla
Cons: expensive for what you get (we pre-paid online $150 for the VIP pass for two adults for the day), food was edible, but nothing special (although freshly prepared short ribs in VIP area were great, well worth the upgrade), snorkeling and kayaking were closed due to high winds (this is typical on this side of the island), VIP pool and hot tubs are dirty, gross- leave much to be desired. If you are a foodie or expecting a luxury experience, you will not be happy at Garrafon.
Zip line and sauna were open, but not really our thing, so we skipped those.
We planned to spend the day at Garrafon, got there at 10:00 and ended up leaving at 1:00 and heading to Playa Norte for the rest of the day.
The experience was not horrible as some others describe, but we will most likely not be back.