Here's a really good review of it.
As these multi-system clone consoles go it sounds like one the best. It still has issues with sound emulation and doesn't play all of the games. Clone systems emulate the old hardware so it's never going to be perfect. This one lets you use all the original controllers which is a plus because it sounds like the controllers that come with it are garbage.
You are a bold and courageous person, afraid of nothing. High on a hill top near your home, there stands a dilapidated old mansion. Some say the place is haunted, but you don't believe in such myths. One dark and stormy night, a light appears in the topmost window in the tower of the old house. You decide to investigate... and you never return...