I saw one of these on the street during the summer. Thought it was pretty cool. At $1,500.00 that's quite an investment. You don't have to spend a lot of money to lose weight and be healthy. If you really want to spend that money on something that you know will help you lose weight, then spend it on high quality food.
When it comes to weight loss, what matters most is what we eat. Good nutrition is what takes the weight off and keeps it off. Exercise is what keeps our bodies fit and healthy. In short, you can't outrun a bad diet with exercise. If you want to lose weight, you have to eat right first.
You really don't have to spend money on fancy equipment to be fit. You could get a gym membership for a lot less AND have access to a variety of different machines including rowers, ellpticals, stationary bikes, treadmills, etc... you even have options for classes and personal training.
Also, you have to ask yourself how long will you be able to use it during the year ? If you're in a place that gets a lot of snow, that means you may only be able to use the striker during the spring and summer months.
And you have to ask yourself if you'll use this item on a regular basis or will it end up as an expensive coat rack. What's your track record for buying exercise equipment ? Do you use it on a regular basis or does it get used for a few weeks and then put away ? For that kind of money, you need to know if it's something you'll use on a regular basis.
Personally, I would opt for a gym membership and maybe a few sessions of personal training or group exercise classes.