Those R44's are pretty quick. Have never flown one but I remember in the mountains being about 5 min. back from a heliport and beside me an R44. I thought I was going to be #1. By the time I got back to the heliport in the 206 the R44 was already shut down (blades still turning). Although he was light on fuel and had only one passenger. My personal record in the 206L3 was about 188mph GS. And with TC test pilot on a test flight in a dive we got the AS350 up to 164Kts IAS. That was interesting, just don't pull out to quick at the bottom.
Back on topic Canadian Helicopters is one of the best mountain training schools out there, but possibly one of the most expensive as well. I guess you get what you pay for. However there are a lot of decent training schools offering mountain courses in Canada. But my opinion is unless you fly for fun in the mountians and have a bag full of cash don't pay for it. I know lots of pilots who paid for the mountain course hoping to find work who never found work in the mountains. If a company likes you and needs you, then they will pay for it.