What’s different in Enso OS?
It features a cleverly customized Xfce desktop with an Elementary OS like application launcher (panther launcher) and a modified Plank dock. On the top, it has a fully-featured panel with the global menu. Combined with Gala windows manager (from the Elementary project) to gives some nice and smooth animations.
It is not just another Ubuntu-based distribution. The team behind has put commendable efforts to make it stand out. It is as fast as Xfce and as elegant as Elementary having Ubuntu 18.04 LTS as the base.