1) Company Culture -- Absolutely the standout aspect of Cornerstone. Any company can put on social events for interns (and Cornerstone did), but this was a fun place to work every day. I genuinely enjoyed working here, above and beyond compensation and career advancement opportunities.
2) Training -- Although my internship was only 10 weeks, Cornerstone invested significant time into making sure I developed valuable skills during my time there. There were specific, planned training days focusing on developing Excel, SAS, and other skills. I went into this internship knowing very little about Excel, but I think I learned far more than my friends who had other consulting internships. Again, though, anyone can have training days; what sets Cornerstone apart is that everyone is willing to take time out of their day not just to show you how to do something, but also to make sure that you really learn and can apply your skills to other situations.
3) Opportunity to Contribute -- No one babied me or gave me "grunt work". Managers listened to my ideas in meetings, and I didn't feel like I was treated much differently from the full-time Analysts.
4) Work-Life Balance -- I stayed late a couple times to meet deadlines, but mostly I worked from about 8:30 - 6. I never felt like I absolutely had to stay late if I had other obligations, but given the team nature of the work I sometimes chose to stay late to help out when I technically didn't have to. Others did the same for me.
5) Pay -- Definitely not a detracting factor. You might be able to get higher pay somewhere else by sacrificing all of the above benefits, but the pay is definitely not stingy.
1) No Travel -- It just isn't that kind of job. There aren't really off-site clients to travel to, and there usually isn't much need to travel between offices. This didn't really bother me, but if you absolutely have to travel to be satisfied, this isn't the internship for you.
2) "Niche" Field -- The skills you learn are definitely widely applicable, but almost every project is centered around a legal case. You will definitely enjoy working here more if you at least find legal intricacies interesting.
Advice to Potential Interns
Accept your offer? This is a great place to work. In retrospect, I wouldn't trade my summer at Cornerstone for one at any other economic or management consulting firm.
Advice to Management
Not a lot. More feedback throughout the internship? It wasn't an issue because there weren't any significant problems over the summer, but was never quite sure how I was doing until the end when I got an offer (at which point I figured everyone was satisfied).