A few people mentioned, that when they watch the courses (here in the "Classroom" tab)
the player is showing often in low quality (360/480p).
How is the experience for you when you watch the courses?
Is it showing always and reliable 1080p?
###EDIT###
As many of you have issues,
The next courses will be on the new hosting platform. So it will work much better.
With time I will migrate all existing courses to the new platform as well