I do not expect fantastic feats, but what a total disappointment after so much waiting ... a horrible sound in games and even using his own cartridges (your lowered? ... Lively bass), games on cartridge operate 1 times 2 my original controller almost unusable (while it is still in fairly good condition and that it works well on my original SMD), no comment on the picture (but it could have been worse).
I did not even try to use the IR controllers, who have not been in reserve batteries, but seeing some reviews, I did well to refrain from testing ...
And say I was looking forward, thinking to give a well-deserved to my original MegaDrive retirement ... if you are passionate about retrogaming, flee on seeing this thing !!! (Well, do not buy ... it's not worth it)