Bloomberg Software Developer interview questions

I first had a 45 minute phone interview a few weeks ago. After being invited to the second round, I traveled to their headquarters in NYC. The interview was an all day experience. I had four interviews in total. Two with with developers, one with a manager, and one with an HR representative. The questions were challenging, but the interviewers would help you out if you got stuck.

Took about 1 month. First contact by recruiter, then technical phone interview. After 2 weeks received invitation to onsite. Onsite consists a back-to-back 2 round interview, all technical. A few of the interviewers were on their phone through the interview, didn't know if they paid attention to my responses. Only a $100 gift card given for reimbursement, couldn't even cover the ground transportation from hotel to the office and from office to the airport. Also, no food provided at lunch time.