Dish has a 3 month free trial of this\ or the movie blockbuster service on myacct/my offers section.
As far as service goes these guys have been awesome, ive never called in to talk to customer service (just my initial sign up which was awesome), however i have dealt with their online chat/facebook/twitter support and been very pleased with them.
This blockbuster service combined with the free slingbox is a great step to meet some of the cable co's offerings (on demand etc...). the only thign i see putting a kink into the hole setup is my local ISP capping my internet.
Cheers dish, and thanks for trying to innovate your service.