We also use colocation. I'm not a developer on the team that uses the infrastructure but we use OnRamp in Austin, TX (http://www.onr.com/ http://www.onr.com/) a

We also use colocation. I'm not a developer on the team that uses the infrastructure but we use OnRamp in Austin, TX (http://www.onr.com/ http://www.onr.com/) and I have rarely heard of any issues. Most delays are from international CDN requests which I believe we have also outsourced to speed it up.