Worked here in Fall 2014. Snacks and Friday catered lunches were provided. There was also a $1000 /mo stipend.
I was assigned a team and given a designated mentor. I wasn't really given many options to branch out into what I was interested in. I worked mostly modifying internal API responses to facilitate the building of a few smaller features. The main feature I worked on wasn't particularly that complex or interesting; hence, the low rating for the quality of work. Work-life balance was essentially enforced for interns, since interns are paid hourly and overtime is discouraged. However, because of this hourly system, interns are also not paid for any holidays (i.e. I was only paid for 24h during the week of Thanksgiving).