Ranked in these QuestionsQuestion Ranking
Pro Free for anyone to continue developement
While the dev has discontinued development the skin is available to anyone who want to continue, meaning that while it is abandoned someone else may pick it up.
Con No longer in developement
What is available is the final version, if any Steam updates break the skin there will be no fixes.
Con Only available on Windows
Being that this skin is developed by one person who is new to theming the skin is only available on the Windows platform, so those using the Linux or OSX Steam client are out of luck.