These acoustic panels have been a great addition to my content creation space. The difference in sound quality is immediately noticeable – the echo that used to plague my recordings is practically gone. I was initially drawn to these panels because of their easy installation, and the included video guide made the process a breeze.What really pleased me was the mounting system. The wall stickers/fasteners are incredibly strong and hold the panels securely in place. Yet, they're also impressively easy to remove, leaving minimal residue that wipes away effortlessly. This is crucial for me, knowing I can easily take them off if have to move from my apartment. Although I haven't needed them yet, the inclusion of permanent fasteners (screws and bolts) provides a nice option for more long-term installations.Overall, I'm extremely satisfied with the quality and performance of these acoustic panels. They've effectively addressed my sound issues and offer a practical mounting solution that suits my needs perfectly. Highly recommended!