I have been dreaming of owning one of these for many years but didn’t have the space and finally do so I have one. First let me say this thing is built like a tank, yes it moves a little after assembled that seems to be an intentional part of the design but it feels like it could hold a horse. They provide you everything you need tools included but I would suggest using a ratchet and socket then use one the hollow pipes they provide to slide over the Allen Wrench (to save your hands and give you more purchase on the bolt head), be careful not to over torque it though. The only thing I would really change about this would be thicker padding on the plates your hips rest on (while the padding for your legs is more than ample), it’s adequate but I’m one of those people who always thinks the more padding the better and I’m usually right more padding is more comfortable, doubling the padding thickness would be most appreciated if anyone at the company reads these things. You can always just put a nice pillow on top for extra comfort. I mean it’s only your Yoo-Hoo or Ho-Ho that you’re putting all of your weight and force onto as you do every rep until failure, so ya… I think more padding would’ve been considerate. Other than that wow! I love this piece of equipment. I even discovered that I can do Reverse Hyperextensions by simply removing the padded bars. Pull the pin out and slide off the padded bar assembly then carefully put your hips on the padded plates while holding the handles lean forward then raise and lower your legs and voilá you’re doing a reverse hyperextension or the French Mistake I’m not sure. This piece of equipment is a real game changer for people with bad backs and injuries. Don’t forget to develop your TVA Transverse Abdominus, that will see you into old age with a better outcome even if your just doing stomach vacuums three to seven days a week, but there are other exercises that help develop your TVA too, research and learn about them if you haven’t already, worth it. I would highly recommend this machine if you have the space to keep it and use it as often as your body tells you it’s okay to.