Compensation - it's definitely NOT bad! But it's a bit sub par compared to some competitors in the life sciences consulting industry, not to mention MBB levels.
Boston office location - it's in Waltham which is quite inconvenient for a lot employees that are living within the city. Can't comment on other offices.
People - well, people is a big pro as I said above. However, there are also shortcomings associate with it. The company has a tradition of hiring fresh college graduates, most of which lack a decent level of maturity and knowledge pertaining to business and biotech/biopharma industries. Actually, many of them have zero knowledge/background in these areas before they join the company. Biotech/biopharma is a highly specialized industry and a lot clients are senior biotech/biopharma gurus. I think hiring more mature, experienced life sciences consultants with a good level of understanding of the industry will make the company perform better and also look better in front of these sophisticated clients.
Elitists atmosphere - to be fair, all consulting companies like hiring graduates with big brands on their foreheads such as Ivy schools. Trinity is the same. Without a famous brand on your resume, it might be hard for you to get interviews. I am from Ivy myself, but I think there are a LOT of high-caliber, maybe even more capable people who are not from Ivy leagues. I would say experience/capabilities should weigh much more than famous schools.
Projects/clients - the company has tons of market research projects. There are strategy projects but not as that much as you would expect for a strategy consulting company. Also the clients tend to be more of manager/director levels, rather than C-suite. Maybe as the company grows and raises its reputation more in the field, this will change.