I had a very pleasureable stay at Bo's house for about 3.5 months. It is very easy to come in touch with Bo (usually via Whatsapp etc.). He was a great host, although you shouldn't expect any face-to-face meetings.
It is a very cozy place and safe neighborhood. I had to commute to MIT, which could take up to 1h+ by public transport. Especially the bus (86) is kind of unreliable (at least for European standards). Therefore, I usually took my bicycle, which takes about 25min. Boston is a great place for cycling, compared to other US cities. It was no problem to park the bicycle on the street, I have never had issues.
One critical remark concerns, one of the other tenants who was kind of weird. I hope, for the others, she is moving out in near future.