Price is what's doing it for me as the EVO is half the MPX, even though that MPX sure is slick. MPX with the rear charging handle is a little gassier than the EVO and I intend to run it suppressed.
Of note, CZ has two carbine options for the EVO out this year. One with a standard flash hider (CZ 08505), the other with a faux suppressor (CZ 08507) from Silencer Co and is supposedly ready to go for SBR conversion, no 992r kit required. I'm curious if the fake can is pinned or what?
Now, if you're on the fence, I can't help you. But, you should know that NRA Certified Instructors do qualify for both the Sig Sauer and the CZ First Responder discounts....