Sturdy, very easy to set up and take down, and makes quick jobs on my balcony a lot easier.
That said, there are some glaring problems...
The clamps are just about worthless. The rubber clamping surfaces allow for too much wiggle if you clamp too lightly. Or if you clamp down tightly, whatever you're clamping will likely want to twist from the uneven clamping force. If you plan to hold a piece very stable against this work table while sawing, you'll want a different set of clamps. Which is another problem, because the awkward shape of the edges means you'll be searching for a clean/secure location just to secure your work piece.
The surface is not flat. I don't know if I'm silly for expecting it to be, but it really doesn't even approximate flat. If you're expecting to do any joinery on this, you're in for a bit of a struggle. If you're thinking of doing an glue-up of a table top, especially, it is definitely not happening.