First let me explain why I have given this 5 stars. I am not being compensated in any way by the seller or manufacturer of this item. I am just genuinely impressed and couldn't be happier with my purchase.This keyboard drawer was exactly what I was looking for. There are so many options out there for under desk keyboard drawers and determining which one is going to fit your desk and look right is the hardest part. This item did the job perfectly.There are a lot of reviews about this item being flimsy and poorly built. I agree/disagree with those reviews. The product itself looks great, it matches my desk to the point of looking like it came with it and if installed correctly has no issues locking in place when open or closed. The length that extends beyond the desk is relatively short for the size of surface space (as other reviewers have noted) , but all I need is my keyboard to be fully exposed when extended and it does that. My mouse stays on top of the desk.My desk has a 1-7/8" support bar close to the edge all of the way around and I was not sure that between the support bar, the height of my keyboard and distance that the keyboard drawer would drop down would work and allow the keyboard to pass under the bar, but it does perfectly.My only complaint is with the short and long wood screws that the manufacturer supplies with the desk. Neither of these screws are adequate. The instructions say to use the short or long screws (your choice) to attach the rails to the tray...neither of these screws remotely come close to fitting. The plastic insert that the screw should be digging into just spins and pushes further in when trying to screw the rails to the tray (they are not secured within the hole) . This leaves the rails very loosely attached (I could pull the screw straight out after attaching without unscrewing it and that is not a good sign). This could explain why there are so many reviews stating that the drawer is flimsy and not manufactured well. It felt like it would fall apart before I could even mount it to the desk using the supplied screws.I searched through some screws that I had and found that using four #8 x 1-1/4" Flat Head Phillips wood screws works perfect. Unlike the manufacturer supplied screws, these screws probably went beyond the plastic and all the way into the wood which made a tight secure hold.Once mounted to the bottom of the desk, it is very sturdy and firm. It doesn't have any more movement or wiggle than my roll top desk keyboard drawer had.NOTE TO THE MANUFACTURER -Please supply four (4) #8 x 1-1/4 inch Flat Head Phillips screws with your hardware package and customers won't have loosely attached rails anymore. The 5/8 inch and 3/4 inch that are currently supplied are perfect for mounting to the underside of the desk, depending on the thickness of the desk top, but are too short for the rails.