As you can probably guess putting it together is a big project. Took me about 10.5hours solo and I am extremely handy. Your average person is going to take 12-15hrs realistically to build. Would be quicker with two people. You need to reference the manual 5% of the time and the YouTube video 95% of the time. In my case the day it delivered it was pouring rain and the instructions got soaked and we’re not useable. Fortunately there is a QR code on the front that takes you to their YouTube video which is pretty helpful.(or you can just search for it on YouTube) Also, a PDF copy of the instructions can be found on the lifetime website for this set which is how I pulled it up on my phone. Pretty much just used it when laying out the poles to figure out what poles go where. They don’t really tell you in the video on that step and it’s more clear to read it yourself. One thing that irritated me was there are multiple boxes that come in the crate and they don’t tell you what order to open them and what parts are in each that you need first etc… so I had to open every single box and lay out every single part to find the pieces you need first. As others have mentioned, the slide is a total pain and maybe the worst part overall. Hundreds of bolts. And that’s the first thing you must build. It becomes irritating fast. The slide alone took 2.5hrs. I also didn’t like how you have to drill your own holes in so many of the parts… that’s clearly a cost savings move by them so they can just pull them out of the plastic mold and throw in a box. It adds a lot of time to the build to drill a ton of holes in nearly every plastic piece. This is unprofessional in my opinion, it should really come pre-drilled. Another gripe, the plastic wall panels attach on the inside edges of the pipes, which does hide the hardware and give a cleaner look, but again adds a ton of time to the build because it’s so difficult to fasten this way. If they just attached to the inside or outside face of the pipes, (like the top upper panels did) it would shave hours off the build time. Fiddling with those takes time! Overall it’s a good price for what it is. Kids love it. My hints for you… be extremely careful which bolts go where. Many are identical but ever so slightly different lengths… which can cause you a lot of rework time. Overall the video on YouTube is very well done. Plan on using that as your main source to build this. One feature that is odd is the “staircase” on the side. It’s hardly a staircase, each step is like 2’ high! Kids have to climb and pull themselves up each step, not walk up it like steps. Just something to be aware of. Just have to kinda watch when young ones are coming down them… it’s a big step down!