I have enjoyed the BobXL. It allows you to focus on 'features' that are not on a normal punching bag,ex; uppercut training is there without the need to buy an extra bag. Sand is heavier than the water but much harder to get into the container. All in all I have no regrets on the purchase and give it a 5 star rating. Enjoy your training.

I'm not too big on free standing punching bags but the BOB is something special, a separate class all it's own. This one is a little longer than the original, including the thighs and groin areas. The rubber skin more closely emulates punching a real person than a regular heavy bag. It is comfortable to strike for long periods of time without requiring hand protection yet holds up to serious abuse from fists, feet, elbows, knees, or whatever you want to hit it with. Furthermore, the human-like shape really facilitates targeting. If you are purely a traditionalist you'll probably want a makiwara (striking post). If you're willing to embrace the best in a modern training tool, however, this mannequin bag makes a great investment. There are some really good BOB workouts in books like Loren Christensen's "Solo Training 2: The Martial Artist's Guide to Building the Core for Stronger, Faster and More Effective Grappling, Kicking and Punching." This is a fantastic training tool for any martial artist. If I didn't already own the original I'd purchase this version.