Online clinics with top trainers/riders - has anybody used this?

[viola]

I have come across these two websites while browsing British Dressage mag and I wonder if someone has bought the membership?
The free sample videos are quite small and the sound quality varies so I am interested to know whether it is the same for full length videos.

Here are the sites:

www.dressageclinic.com

www.showjumperclinic.com

 

[viola]

nobody?