Very hard to understand, no written directions to help set upRead directions carefully. We had some challenges with installation. Looks so easy on video - watched it 4 times. Used a ladder and finally called in our son to get it together without significant sag. We installed it in our woods - so it is permanent for season. Also, hung over sandy area for soft landings. The grandkids love it! First 2 weeks and 5 kids, it is holding up well, so far. Very bouncy fun!Bought this for my son’s ninth birthday and he absolutely loves it! Didn’t take too long to install, directions were easy to follow. Had to readjust to make it higher after he tested it out, so it’s best to test height with your child first if possible. We love that you can change around the obstacles and create so many variations. We have already changed it up twice. The fun never ends! Extremely happy with this purchase.I installed the ropes and all the accessories. If you do it alone it will take you an hour or so, but it's worth it for the kids.** Update on 7/13- I heard back from Hyponix Customer Support and the reason I hadn't heard from them is that they had an issue with the email ticketing system. Whew! They stood behind their product and offered to replace the broken components. I am so thankful to have requested a replacement instead of buying a different brand. I was very impressed by how their customer service handled the issue! We are swapping out the cargo net and the kids are thrilled to have that option back! **Our kids love this product!!! Unfortunately two days after putting up the cargo net, it broke. I've attempted contacting Hyponix directly (using their support email address and their contact us form on their site) to see if they could swap out the cargo net instead of having to return the whole... but it has been 2 weeks and we have yet to see a response. Not what I expect from a company, nor for paying this amount of money for the product. Everything else with the product has been working great. Such a bummer to have to return it.One of the best investments ever for my nieces they love it and so do their friends.I got this for my eight year old and two five year old grandchildren. It was a very sturdy, well built product. Written instructions were brief, but there was also the link to watch a video about how to assemble, which was very helpful. I don't think I would have been able to put it up alone, but the kids' grandpa did the main assembly and hanging. The kids were excited and eager to play on it. My eight year old granddaughter was pleased that she could swing from one object to another after a few tries. She is an enthusiastic gymnastics student and loves physical activity. The five year old boy and girl twins liked swinging, and the girl liked the climbing features. One problem we had was being able to ratchet it tight enough to take the slack out of the line. Also, the monkey net drags the ground, so we may have to work on making the line more taut to raise it up higher. Overall, I am pleased with the product, though.My kids (and all of the neighborhood kids) love this course. It’s awesome because you can adjust and rearrange the obstacles to vary the level of difficulty.UPDATE: Customer service followed up and shipped another unit eith bonus attachments to make up for the missing slack line.Original review: shipped without the second zip line.. you need this second line to attach the climbing net.I contacted seller for second zipline, and they said they'd ship it. It's been a month and haven't even gotten a tracking number.This thing is a pain to install. And there's way too much flex in the line.I took it camping and I don’t know how many people asked about it. Every kid walked by stopped and had to. Take a look and it set up over the pool as a permanent fixture. The kids love it!Came quickly and well packaged. Quality material. Kids are excited to try it outI was presently surprised at the quality and the ease of setup. Our grandkids love it and it might even inspire Grandpa to tryout for Ninja Warrior lol but it is really coolGood product, easy set up. But it is missing the button slack line