I was very close to ranking this item as 3 stars but in taking several considerations into account, opted to go with 4. Because the unit has to retract, it has a strong return mechanism. As a result, I found it difficult (aka: a pain in the a**) to secure it to the fully extended 118". Because I plan to deploy & retract the screen frequently, I ended up shortening the total span of 102", not the 118" listed.
If you intend to leave the screen extended or have an assistant to help in deployment, this might not be an issue but I found it problematic