Sure, I'll provide some feedback.
1. I school in Montreal, but I was visiting home in NY for the break. So I flew from there to O'Hare, took a cab to the Marriott Courtyard Hotel for the night (got the Rosalind Franklin Student Rate), and then took a complimentary shuttle the following morning to the school. (Make sure you contact Marriott for the Gurnee Flash Cab number to make a reservation, as they provide a flat rate of 47 dollars from the airport to the hotel. If you just let counter clock you by the second/minute, it will run you north of 90 dollars)
The flight cost about 200 dollars round trip via expedia.com. On the way back, a fellow candidate drove me to the airport, and I chipped in for her car rental fare. So it all summed up to about $370 dollars in travel expenses, including $30-40 in food and drinks.
2. RFU COP actually is currently my first choice, mostly because the experience was really amazing, and the facilities and resources provided to the students within the program are very innovative and contemporary. It was a good experience. I can't compare to any others yet, as my next interview isn't until this coming Friday.
3. What could you tell me if I told you there was a positive correlation between eating ice cream, and drowning rates? In retrospect, I should have mentioned correlation does not imply causation, but I was just trying to come up with a logical answer as quickly as I could, haha.
4. Describe an SN2 reaction. I know it's semi-basic Organic Chem, but it had been ages ago since I last dealt with that material, I was a little caught off guard, but I ended up answering it correctly!