We were on limelight and moved to highwinds, I get much better delivery speed results on HW, but they have a small cons, their upload speed to store the content is very slow, so I used our office fiber for the origin and amazonS3 as backup.
My rep is Trevor at
[email protected] if you're interested.
And just saw you're in mtl too, if you need more details ping me up on skype: raphael_leroux