I have a star window that faces east. Every night we leave it open to get the cool air in, and in the early morning our 88-year-old grandma would climb the stairs to close the curtain; otherwise, the morning sun gets pretty hot quickly. Now with this electric blind, grandma can easily use the old-fashioned remote control to close the curtain, no need to climb stairs. Although the product supports voice or app control, the old-fashioned way is more friendly for the elderly. Upon arrival, the top right corner of the blind is squeezed by the battery pack! I think (picture it, it’s not a big issue since you can’t see much damage after installation feature). However, their customer service is very good; they said they will mail me a new package and I don’t need to return the current one. For installation, I did the inside mount, and I think their provided screw and plastic anchor may not be the best combination. For inside mount, the top of the window should be wood and drywall; the anchor is only for drywall, I don’t think you can put the anchor in all the way (blocked by wood). I used drywall screw (e.g., longer screw without anchor) and it’s super easy to install. The user manual should also include a picture of the finished inside mount e.g., you only need to install the two round metal holders, and then you click in the blind. The two 90-degree holders are not for inside mount.