Very sturdy and easy to assemble. I assembled it myself without any help. After tighting screws I checked it's stability and it was perfect. Not a slight movement.
My only concern was whether it will be stable against high wind/storm. One soloution was to put heavy pots.  I took a chance to put 60 litre pots and then watered it to check if this can sustain enought load and it did. I used westland general general purpose compost with john inn. Nothing else. I am just waiting for my climbers to arrive. It's already looking beautiful and would look mire after climbers cover it. 4 in one Privacy screen, beauty, fragrance from plants, some shade if it's too hot.