I started out with NYL and really liked the company a lot. I met a lot of incredible people there and still look up to many of them as role models. The one big thing that caused me to leave, though, was that the managing partner was, for lack of a better word, stupid. He just was not very intelligent at all and had a Napoleon complex that really kept him from being an effective leader. In your situation, think about the partner you will be working with. You will essentially be hiring him/her as your business coach for three years. If they bring a lot of value to the table, then by all means make the switch. If not, them stay where you are or look for something else.