I bought 4 more of these lights - so 6 total now. Once I figured out how to solve the time zone problem I have had zero issues with the lights so far.
Even paid just $145 each for the 4x purchase on Alibaba - pretty hard to beat that deal, warranty or not.
The app actually functions better than most (I have experience with Kessil, straton, Reefi, and mobius) - if you can look past some of the translation issues. But the way it manages light groups and keeps them synced is probably the most straightforward out of any app. Kessil did this really poorly, and Reefi often de-syncs lights.