I got 2 of these to use for my puppy.  This gate is super sturdy and super easy to install.  I did it myself in like 5 minutes.  
I got a little confused reading some reviews so just to clarify- this is a pressure mounted gate.  There are long screws with wheels and bumpers that you stick into the ends of the gate and spin out to lock it in place.  You don't screw anything into the wall.  
I like how tall it is and I think the door is wide enough but can get a little awkward if you're carrying a big bag or laundry basket.  You can unlock and open it with one hand but it is a little difficult to do so.  
Overall, for the price and quality, I could not be more pleased with this purchase.