It work reliably on a basic level. But it only downloads the video in very low quality. I know that yt is very restrictive but I also know there is workarounds. For example Skytube on Android let's you just 1 click download everything you want in up to 2k (afaik). Also 1 star, because i feel like i need to counterbalance the OBVIOUS fake 5-star reviews! Wtf.