I've been using a Dreambox since they first came out and up to about six months ago it was definitely the dogs whatsits. New encryption techniques have tamed it somewhat now and to get any reasonable use out of it will require some sort of third party card sharing system.
A cheaper alternative is the Nano 9600 IP which although has few bells and whistles does open up a world of satellite television which hasn't been available for years on the Dreambox. If you take a look at this
webpage it lists the currently active decodable channels via this unit.