This desk came at an amazing price and has worked flawlessly since purchase. However, the anitcollision system was something I didn't think was important, until I lowered the desk on my chair and tipped everything off it! Obviously if you are careful (which I will be in the future) this won't be a problem - but just something to be aware of. Given this desk is quite a lot less expensive than some others, you may want to pay the extra for this feature. But I couldn't be happier with my desk!