OK, so i'm not one to write many Amazon reviews, so it's rare I feel the need to immediately hop online and write a review after installing something. But I know i had lots of questions before ordering this, so hopefully i can help assuage some concerns others have. I literally just installed this on my staircase while watching a rerun of "Titanic," on tv, because there wasn't anything else on. First of all, yes, it's expensive. For that matter, this thing is legit. It's not that lightweight plastic / "metal" you find in much cheaper gates, this is legit metal and wood. It's not overly heavy, but it's solid. I was very impressed. Secondly, the pressure feet have a little rubber on them, which is nice, but I'd recommend something to cup them anyway, such as a 4 Pack Baby Gates Wall Cups. Third, do NOT use this between stair railing banisters, unless you have very, very solid banisters, or well anchored metal. And that subject deserves its own paragraph. So depending on your banister, you may or may not need an adapter. I did, and i used the Summer Infant Banister to Banister Universal Gate Mounting Kit. The gate mounting kit was easy, basically just a couple zip-tied pieces of properly cut wood. If i had time, I could've just made my own in a few minutes, but hey, I have a baby, hence the need for the gate, so of course I don't have time. I didn't even have time to put a better movie on. Anyway, the kit provided a flat surface upon which to mount the gate via the pressure pads. These are typical screwed feet, with a small plastic piece to help with screwing once the force required was too great to use just your hand on the foot itself. There is also a small "wrench" that fits within slots in this plastic piece for when the force gets even harder. To be honest, that wrench thing is terrible...it gets the job done, but it's made out of very thin, stamped metal, so it's not exactly soft on the hands. it also doesn't lock in place, so you're constantly reslotting it and going a quarter- to a half-turn each time. It gets old. Right around this time, I took a bit of a break to watch Rose totally tell Jack to go pound sand. That door was big enough for him to fit on it, it's such a joke. Ok, so fine, maybe the added weight would've forced the door under the water and they would've both been in an inch or so of freezing water, but it was certainly worth more than that half-hearted, "oh no, jack, looks like you won't fit. shucks. well i'll never let go once you die, unless you're holding me down, then i'll totally let you go." /rant. anyway, this gate has a pretty ingenious safety to ensure you've made it tight enough to the wall, and that's the fact the door won't close and latch right out of the box. It requires pressure from the wall via the adjustable feet to force the frame into the proper form for the door to latch. you will be needing this wrench to get enough pressure. now, because this requires a good amount of pressure, i've noticed the tops of my banisters are pushing outwards at a good angle, perhaps 15-20°. clearly, these are not strong enough to withstand the pressure required for this door. That being said, it works well, and i'll definitely be keeping it and using it elsewhere in the house. I'll replace this one with a door that swings on a hinge and adjusts size by sliding the doors in and out of one another. All of that being said, between two walls, such as in a doorway, no problem what so ever. This thing is legit and you'll definitely like it. Installation can be annoying with that wrench, but that's just a one-time deal. I would definitely buy this again, depending on where i need it.