The education is high quality and there are so many majors that they keep grading standards high as anyone can switch out to something easier (i.e. communications).
That said BU is full of very rich foreigners, and fairly rich US students who couldn’t get into Ivy league schools for whatever reason. Some of the dorms and buildings are new and cutting edge, others are really old and shitty. Living in the newer dorms is significantly more money than the older ones, so the prices quoted at the link are for the shitty old buildings.
I would not encourage anyone to go to BU who needed loans. I would recommend a merit scholarship or have rich parents. The price isn’t worth the degree or the experience.
The volume of top-tier schools in the north east means that there is a subtle student brain-drain from state schools not found in other parts of country - this obviously applies only to students who can afford it of course, and smart people certainly attend UMass.
From an educational quality standpoint, they are comparable. I personally like the rural feeling of UMass Amherst a lot more than the city surroundings of Boston University.
Educational quality also stems from the quality of your classmates. In that regard, UMass Amherst is a bit worse than Boston University, which has better rankings and attracts students whose families are more affluent. Finding a job with a BU degree is going to be easier than with an Amherst degree from what I understand.
Personally, I’d choose UMass Amherst because it’s cheaper and some of my smart friends go there (due to affirmative action going to another level this past year blocking out Ivies for a bunch of Asians).
College these days is mostly about getting a useful degree and building up a network... as long as the school gives your opportunities and has a decent alumni network it doesn't seem to matter much beyond that.
I went to the best HS in the Northeast in the 90s and no one seriously considered BU, but UMass Amherst was a non-shameful safety. But I am out of the loop - things could have changed in 20+ years