I didnt expect this.....
I will be fast:

CONS:
-Controllers are small and very unconfortable. Also the direction pad is really bad, similar to Xbox controllers....
-Once you connect the S-video, on TV you can see small lines comming from top to bottom, so make it really bad quality signal. I tried diferent TVs and same problem. Good to say that if you use the normal RCE yelllow video conector, you wont face this problem.
-Tototek doesnt work on it.
-Turbo and SLOW fuction only work on Famicom games.
-I think is expensive for what you get.

PRO:
-Small and not bad quality overall.
-2 console games on small espace and with only one small power adaptor!
-Buttoms for controllers are quite OK
-You can plug your Super Famicom Original controller and works! Also you can use this small controllers on your SuperFamicom.

Anyway, I dont really recomend. :(