I'm not sure what the resident of 16 years is saying. It's one of the prettiest and safest places around.
Most of the corporations have settled about the Waltham area - I'd be more worried about traffic when running than the residents.
As a whole, Boston gets less crime than most other large urban areas in the US.
I can see why Boston is the home to New Balance - a 2-mile run will let you see scenes of babbling brooks with Americana homes on top of one another. The combination of the flat land and scenic vistas make for an awesome run.
Waltham has more of a 1950's look in parts which have run down a touch, but nothing like other parts of the country.
Yeah, I heard there were "bad" parts of Waltham - I guess we all can't be stockbrokers. Anyway, you won't be running around there anyway - I have yet to see those parts.
Recent Boston resident, long time DC area resident.