I purchased 2 of in this size last year and have had them in use over 10 months. They were very easy to put together on my living room floor then walk it outside in one piece. They are very sturdy yet light enough for me to carry around. Once filled with recycled cardboard, tree branches, leaves, and amended soil these things are not budging. I do like the 17" height so I don't have to bend over too much, and they're good for veggies that have longer roots.
So far these look just the same as when I first put them outside. There have been no negative effects from the rains or cold weather. I put up my own mesh cover during the winter (my kale did most excellent with it during the winter) as the covers they sell on the site were out of stock. Since these are metal, I was able to use magnets to keep the mesh attached and not blow off in the wind. 
I might get a couple of the 32" tall beds for my tiny, elderly mother, so she has zero bending over to do yet still enjoy her gardening.