Bowflex Xtreme offers a wide range of exercises for complete body toning. You will be able to target many different muscle groups and pursue great results with reduced risk of injury and muscle tearing.
As you may know, Bowflex uses Power Rods instead of weight stack or weight plates. They may not feel as good as free weights but risk of joint pain is much lower when using Bowflex Power Rods. You should try exercising on any Bowflex machine before you decide for a purchase, in order to feel the motion and resistance that rods provide. Remember that you can upgrade Bowflex Xtreme XLU from 210lbs to 410lbs of weight resistance, which is enough even for serious users who want to build up some muscle mass.
Compare this model to some BodyCraft and BodySolid home gyms, to see where you stand. Bowflex may be a bit overpriced but if you like Power Rods then it could be your type of machine. You could go for a Motivator 2 which saves you a couple of hundreds but you'll only get a 2 year warranty.