I bought two gates online, for the top and bottom of my concrete stairs.
First of all can I say that Baby Bunting sent me a gate that had been opened by someone else and there were parts missing. I only found this out when the tradesmen was in the process of fitting them so I had to pay him to wait while I went to Baby Bunting to pick up replacement parts. Very disappointing and the staff were not very supportive, could have at least said "sorry for your inconvenience"
The gates need installing by someone with patience and skill. I like the gate themselves, they are strong and well designed. However, as another reviewer had mentioned they have designated widths which click into place and create the safety. If the width between your walls does not fit with designated lockable options you have to pack the distance with timber cut to fit the exact distance. I live in a 100 year old place and my walls are not straight so this has also meant that the timber packing has had to be shaped for purpose.
You need to be prepared for the installation to take quite a while