Great place to stay! Clean, spacious and very central.
A note on the location: one sleeping room goes out towards the back - the other towards the street, which is naturally more exposed to traffic + construction work down the block, which was also going on at night. Nothing one can complain to the hosts about - that's just city life. Albert is a great host and very responsive! Check in/out was easy.
Next time I am in Boston, I will check for availability again.