Honestly watching the video I was stunned with all the content. Far more than what the original announcement said and that was pretty impressive in itself. Showed this to my wife last night and she was very impressed. There are a number of routines she has been interested in, but didnt want to spend the cash for videos. She was like I get this stuff for a year..thats cool.

Not a system seller, but I'd use it. I don't work out, but I want to and keep putting it off.  Having a scoring system would give me motivation.

I really hope the female audience will be told about this. Hopefully MS will focus some good PR ands ads on this.

Looks like the most useful feature (game?) the XOne will have in a while actually.

Does anybody knows if this will work in all countries? I hate when I see Amazon and Hulu apps just to find out that you can't use them in Mexico.

That jumed out immediately at me too. 

This is so legit that it's not even funny, people will lap this shit up. I think that the Kinect feedback is great, seeing that dude's leg muscles light up was pretty neat. Also cool is how they implement those little motivational aspects like how you compare to everyone else and your personal bests and what not. I thought this was legit when they first announced it a little ways back but seeing the amount of content and seeing this guy doing the workout and all of the onscreen feedback I'm extremely impressed.

It should work in all launch countries. I remember one of the early videos stating that content and features may vary depending on the country. Which makes sense.