Martin's place is only a few minute walk from several eating options and is convenient for walking around the hiking loops. I highly recommend dinner with Vilma up the street at the house with the flags (must call ahead).
Some logistics good to know:
There are like 3-5 ferry companies, each one has similar schedules that can vary by the demand.
Martin's house is a 5 minute 5EU pp taxi ride or a 30 min walk from the New Pier for the ferry.
There is no wifi at Martin's but there is at several local eating establishments.