Hmm, this seems a bit odd. I get ~16ms lat on ping from the Digital Ocean Amsterdam center (I'm in Denmark). I tried their US one which gave me ~100ms. From what I gather from your traceroute, this is a lot faster than what you experience?
It depends. Some people get a decent speed in both DC. Some dont. For a hosting company you want most people to be in the great speed camp, and good speed for the rest.
