I left the so-called Brickon to move to Sony, no regrets, can't see me ever moving back to a DSLR.
I've heard people moan about Sony QC issues but to add balance, look at how many recalls and problems Nikon has has with their bodies, even now they are on their 3rd problem with the D750 which isn't a old body.
They also had a problem with the D600, rather than admitting it, they released a D610 and fixed older D600's as and when.
AF fine tuning my D7000 & lenses drove me nuts!
I totally agree that DSLR's have some advantages but those are slowly being addressed in mirrorless alternatives and eventually I believe Sony will crack the Pro market, I'd say another 2-3 years.
Everybody has a preference in body/manufacturer and that's great for competition and growth.
I may buy a Brickon if my requirements need it, at the moment I'm just a Sony GAS whore! Lol