My parents had that and it didn't work very well. More expensive than Telus DSL and they found Telus to be much faster once they switched. I hate Telus with a passion, but have to admit that their internet experience is much better than it was with Platinum.
Repeated calls to the company complaining of their throughput issues (would take minutes to even bring up
www.calgarypuck.com) and no solutions. Even working with the tech support guy lead to nothing - "might be a hardware problem" with no offers of swap, proof, nothing.
Brutal company, although your mileage may vary.