Works very well in the space I needed it for and the walk through gate works well.  The instructions were a bit vague about how you get it to pressurize so there is not a big gap in the walk through gate and if you are trying to place it in a space that has framing around the opening it is difficult to tighten the pressurized ends.  My little chihuahua can get through the  rails on this gate, but she mostly respects it and stays behind it.

Pros: Sturdy and functional.  
Cons: A little difficult to get it set-up correctly, smaller dogs can get through the bars on gate.