If you're adament about wallpaper but insist on DIYing it (because you're in a rental, or super stubborn) buy it. Otherwise, hard pass. My husband and I are serious DIY folks. We've installed wood floors, wood stairs, treads and risers, custom built in bookshelves, crown moulding, new trim, tile floors, beadboard, etc. We are not novices and I kid you not this was SO hard. I think a pattern that did not have lines would be easier because the whimsical pattern would line up better and be more forgiving at the seams / ceiling / floor. We had to install crown because to get the squares to align over the whole wall, we had to cut at weird spots along the ceiling leaving an uneven start to each piece. Also, this material is VERY thin so any imperfections in the wall are very obvious. Like a fleck in the paint roller obvious. For the price you're paying, it would be way better looking to just get thick, real wallpaper. Also, if you pull to hard the product stretches, which makes it hard to fix any air bubbles once you lay it down or to realign if needed. You start at the top aligned with the squares next to you, and by the end the material is stretched out and the squares are off. Basically don't 'tug' it taught when installing - just 'lay' it down. Lastly I would NOT recommend this for any bedrooms or areas with kids (playrooms etc) unless you have a month for it to off gas before moving in. We did a powder bathroom and the smell was SO strong, even a week later I smell it despite leaving the door open for the week. Also, I wouldn't recommend doing a room that large anyways because of how hard this was. Probably best for just an accent wall in a room this size.
TLDR - Get real wallpaper or creative with paint!!
