it delivers everything that you even need(or don't).
i'v seen many extensions,but they were just pieces of what i need,but his one have all those pieces in one extension !
b4 it i used joomgallery and it was great,but it lacked one thing - youtube support.
so i migrated to phoca,that deliver same level of quality(with some differences ofc) but also give ability to have video gallery.
hope to see more features.