Pros: Easy use and access.
Cons: Price is too high.
The Bowflex dumbells 552. Not too much different from the rest of the Bowflex items. It's over priced as usual, so the cheaper you can get this, the better. The concept is great. Condensing that amount of weight normal people will never go above in a gym. It may cost you more if you plan on buying seperate dumbells to match the weight needed for muscle growth, unless you plan on never going up in weight, then this should be a one time buy and a decent investment (since it's your health)