We visited Charles's place the week of our daughter's graduation from Harvard. The location is perfect! Everything was very easily walkable in a few minutes. We didn't use the car a single time the four days we stayed.
Cambridge is even on normal days not an easy place to park a car, and during graduation even less so. Charles helped us with convenient, safe and very cost effective street parking!
Finally - the room and courtyard (where we spend a nice evening with our daughter) were very comfortable. Everything as 'advertised'. We will definitely look at Charles next time we visit Cambridge.