I had a great stay at Marina's apartment. I was there for six weeks. It is super comfortable, and very close to grocery stores/drug stores/delis/and the bus stop. The s51 is a 5 minute walk, and takes you directly to the SI ferry in about 15 minutes.

You really can't beat a host who stocks your fridge before you arrive, and is super attentive to details and any small issues that arise. I would definitely return if I come back to Staten Island!