Got the game last tuesday and am feeling its affects already....I ache everywhere, I have also lost 2 kg!!! As a regular gym goer thought it would be a walk in the park, I was wrong!!!
It works better than Wii Fit I think because you can't just pick the easy fun things to do. With the 30 day challenge from your weight, height and age data you are set a regular workout, which you are guided through with concise video examples, and can be set at one of three levels depending on how you feel..
Generally you start with a walk/run and a few lunges to warm up, then a series of stretchesand other exercises including the brilliant boxing incorporating the resistance band (& fit board if you choose) and end with another walking/running combo. Throughout all of this the calories you have burnt are displayed on screen and provide a little more incentive if needed!!
You also have a journal to fill in if you choose which is great if you want to be able to try and monitior your eating habits, nothing kicks you up the bum harder than having to admit just how many sugary drinks and take aways you may have indulged in!!!
Also unlike Wii fit you aren't expected to go on everyday, you have rest days, and if you miss a day its counted as rest instead of being questioned by the annoying little fitness board man!!!
Having used both fit and active I much prefer this option, your really do work up a sweat and feel like you've earned it!!!