It depends on where in Jarabacoa. Fiber is available in a small area on Av. La Confluencia. I understand that is an experiment of sorts.
Areas close to the central servers can get 20mb, but that is also a small area.
We have 8mb/2mb which overall is solid. However, there are periods if high demand (like last night as I was trying to upload a HD video) where there just isn't enough bandwidth. Last night the ping was 473, .23 down and .1 up. Pathetic, and there isn't anything Claro can do about it except add more bandwidth. This morning, ping 11, 7.5/1.9, pretty much normal.
I hope fiber becomes available on a wider basis.