the sides are low, if you touch the rack, they will not help prevent slipping and the fact that the MacBook will fall. a very important note - there are no holes in the sides for AUX USB and Power cables, the laptop ports are trying to break out because of this. I also want something that is not sliding.
and it is very inconvenient that even after disassembling the stand, the upper part has a large connector for mounting on the stand, which makes it difficult to shove it somewhere. not convenient for transportation. I will order another rack. it would also be nice to have a mount for a microphone and a sound card (or external hard drive)