zidoo X6 pro vs. zidoo x5 opinions anyone?

does anyone have the both boxes and could share a bit of his experience?
it crossed my mind to get an x5 for my picky samsung tv but I need an honest opinion, the internet reviews looks biased..

 

I'm using X6pro for my own. RK looks like a bit better in streaming playback.

 

yeah, but the price is double. I'd rather spend only half of the amount.. it it's quite close to the X6 I already have, why not?

 

If you already have X6pro, try another product, X5,why not?