I thought there was a recent thread on this, but I cannot find it. I use the Caldwell Stable Table when I am sighting in on the farm. The plastic turn knobs are fairly cheap and one of them has stripped out on me so I cannot disassemble it right now. But, I can still keep the base in one piece and take off the top, so it is fairly easy to move in and out of the barn. The metal hardware feels sturdy. The plastic top is comfortable and doesn't get too hot in the sun. It is plenty stable when I am sitting on it and I shoot well from it. I like that I can adjust the seat height to change the angle for shooting on or off bags, or shooting at targets slightly further up the hill. So, on the whole, it is not terrible. Eventually I will get around to replacing the plastic knob with something more sturdy.
If you found one on sale or have a good veteran/first responder discount, I think it is okay.
I am 5'10", 175# and it can fit me just fine. I can also adjust it for my 4'4" 72# daughter.