It's interesting that the product photo shows the device at a slight angle because that is not possible. The slot in the top is narrow and holds devices straight up and down, there is no way to tilt your device, even slightly. I had guests visiting and three people used this lap desk with every single person taking their device out of the slot after less than a minute. The straight up and down angle is not useful.
The surface is not non-slip as stated either, it is slightly grainy wood finish. Once you take your device out of the slot (and you will) and st it on top you have no room for a beverage or anything else. It is just average as a lap desk but very misleading product information, hence the two star rating.