DDJ RZ owners please give your opinions

Ok so I currently own a XDJRX, and really want to get the DDJRZ.

From what I've been reading here, it seems there's some real issues with

the unit. I'm not sure if they're just faulty units, or user errors? 

What are your overall thoughts and satisfaction with the unit?

Are you regretting the purchase, or happy with the product.

Any and all input is most appreciated, and thank you in advance.

Oh and by the way, no real reason for the switch, other than I just 

really like the RZ and would like to own one.