For us..and with a home on the west end..flying through STT works far better and cheaper. We usually fly SFO..MIA..STT. I have had horrible experiences at San Juan and avoid it like the plague..I hear that's not the norm, but it left a bad taste in my mouth. The ferries may not be that reliable but we always make it across..usually after a cold one or two with Michael at The Petite Pump Room.. a nice relaxation after a long overnight flight..One piece of advice...some credit cards have been compromised after using them for the ferry..pay cash if you can. Still better than having your valuables ripped off from your bags in San Juan.