I was going to go for one of the Lindam gates as they seemed the most popular, but then I realised the space I wanted it for was too narrow (moral = measure your space!). This gate came up with the best reviews of the narrow gates. I'm really pleased with it. This gate, in my opinion, has some of the best features of any gate I've seen:
It opens in both directions
It doesn't automatically close, you can leave it open
If you give it a little push, it swings closed and locks.
The opening is very easy (one-handed) when you know how, but not obvious, so hopefully quite childproof (squeeze AND lift).
It's a pressure system so no screws. Mine holds fairly well on two smooth gloss-painted wooden uprights, it slides a tiny bit.
Also included are "cups" to screw into the wall into which the pressure pads can be secured. I haven't used these yet but probably will as my baby gets bigger and stronger.
It feels sturdy and well made.
I would definitely buy another one. I currently have it in the doorway between kitchen and living room and my little 10 month old comes and rattles it and stretches out her little hand through it towards me while I'm cooking dinner. So cute.