Playstation Emulator

Has anyone every tried FPse? It seems like a great app because I want to play Playstation games again, like Tekken 3, Metal Gear Solid, Mortal Kombat, Tomb Raider etc. 2.99 is not a lot to try it out, so I will download it soon, but I want to hear from people that already downloaded it if it works.

http://www.fpsece.net/
https://play.google.com/store/apps/details?id=com.emulator.fpse&hl=en