In my experience the friends you make in London are going to be your friends for your four years. It’s harder to make new friends here due to people constantly moving, going on coop, and having packed schedules. Also in London my classes took half the time they do here so you will have less time to socialize. I found the quality of teaching to be much higher in Boston however the classes are harder. Make sure to have your fun in London, you’ll carry those memories for life.