I've also got a Flexispot (from Amazon, assuming its the same brand) and its been good for a little over a year now. Seems well built and sturdy at any height.

I've also got a Flexispot (from Amazon, assuming its the same brand) and its been good for a little over a year now. Seems well built and sturdy at any height. I don't stand a lot, but it is nice if I wake up and my back is sore. Also gives me better adjustability with the office chair, lets me set the height just right.