HF has an open cart on sale from time to time for about $39. I have one of those and it really is pretty sturdy. I do like the one you show, just not THAT ($$$) much.
I have pull down stairs, much too narrow for many thing so I built a 42x42 lift to put things in the attic. Now I can store the Christmas tree and even furniture up there.
https://www.facebook.com/photo.php?v=3059681883885&l=8147446000143653005
I have been creeping on here and a must say I have seen some great ideas. I finally decided to join and just wanted to wish everyone a happy new year
Ron