First of all, I should start by mentioning that the packaging that this shelf comes in is *so cool*. The inside flap tells you everything you need to know about how to install it in just three easy, clear steps. No ugly manual and complicated parts. I had it installed and working in under two minutes.I was worried about the strength of the magnet strip along the bottom of the shelf since I have a heavier keychain (lots of keys, trinkets, bottle opener, etc.) however it grasps onto it extremely well, while still being a breeze to remove from the magnet. Out of curiosity I tried to figure out the distance i can throw my keys at it and still have it stick (it looks cool around friends) and surprising I can underhand-toss my keys from up to 10 feet away and still have the magnet catch hold of it if the keys connect with the strip. SO COOL.Personally I don't like to put my phone on top of it since I get separation anxiety when I'm more than an arms reach away from my phone, however I've placed a small vase filled with water and flowers (appx 6lbs) atop it and it shows no sign of strain against the wall.This is an absolutely beautifully crafted piece that I HIGHLY RECOMMEND for a modern looking home. Magnet is strong, shelf is well made. Can't beat the price either!