FLEXISPOT KT1B Adjustable Keyboard Tray Ergonomic Design Standard Under Desk Sturdy Platform with Gel Wrist Rest

I bought this Flexispot keyboard tray to go with my Flexispot height adjustable desk. I am very happy with the desk, but unfortunately the keyboard tray is fundamentally flawed.1. The tray sits too low if you have to use the spacers2. The part holding the tray sits even lower and will always hit your knees3. The slide sits in the middle so as soon as the keyboard is partially tucked under the desk you can't use it meaning you have to sit quite far away from the desk.My desk has a beam about 30cm deep (for height adjustment) which means I can't install the keyboard tray without additional spacers provided with the tray. However, using the spacers means that the tray will sit ~17cm below your desk height. This is a big difference and I would like it tucked much closer to the desk itselfThe part the tray attached to sits even lower. Therefore if I want to sit relatively close to the keyboard tray / desk then my knees hit it.The slider sits in the middle rather than having 2 sliders either side of the tray. This means that if you want to sit closer to the desk with the tray partially tucked in then the slider covers the keyboard making it unusable.Overall the materials are fine, but it is overpriced for what it is and I found it entirely unpractical. Buy one which connects to the desk either side of the tray and sits closer to the underside of the desk.

Installing this took a bit of flat-pack intuition. This instructions give no clue as to how far from the underside of the desk you should place the bracket, so it's a bit of trial and error. Once the bracket is installed, the spring loaded arm fits and easily travels back and forth. The problem here is that it's so tightly wound that it takes some effort to extend and snaps back. There doesn't appear to be a way to loosen this, either.OK, so now it's installed, I want to easily slot it away and have access to my desk. The problem here is that I need to loosen the tilt mechanism and apply some not insignificant pressure to get the tray under the desk. When under the desk, the keyboard tray juts out from the desk. You'll possibly assume that I installed it incorrectly, but no, if I installed it any further back, it would be impossible for the keyboaard tray to fully pass the front of the desk.Now it's installed, if feels solid enough, after I've seriously tightened the tilt mechanism. When I say solid, I mean sturdy enough to hold a keyboard and mouse and some gently resting hands. If you like to lean on your desk, I'd be wary.So, in summary, I bought a keyboard tray with the hope that I could easily slot it away when I didn't need it. What I have is a permanent extension to my desk that I doubt I'll ever slot away. There were cheaper products out there that just would have been a piece of wood on metal runners and I expect I'll resort to that in time. Definitely not worth the money and highly likely to end up as landfill.

This is a very good product, highly adjustable in terms of hight and keyboard angle. It is easy to attach and operate too. The reason I am giving it 4 stars is that the whole panel tilts slightly to the right and down (see the photo attached). I checked my desk and all screws. Those are levelled. It might be something with the alignment of the rail itself and sliding part of the tray. It seems there is a small alignment gap, so I glued a small plastic part (credit card thickness, 2x0.5 cm) beneath the right side of the sliding tray. This lifted the unit into desired, straight position and it made it tightly aligned with the rail. This might be just this unit. Overall, I am satisfied with the product.

Expensive, but sturdy, easy to fit and plenty of room to move the mouse even with a full size keyboard

Amazing product