Hmm. I have to turn many Bombardier and Embraer jets daily (plus two A319s), and the Embraers, both the 170s and the 145s, but especially the 170s have many, many more MX
issues than the CRJs and CR7s. A guy I know at CHQ MX
says they call their 170s "180s" because of what happens after they've been in the air for awhile. Of course that's an exaggeration... but we've had to cone off a 170 in the middle of a ramp because the computer decided not to let the pilot turn the nose wheel and wait for about 20 minutes while the pilot called MX
and had them walk him through a reboot. Then we had to find someone to fuel it up again...
Sorry, that's a touch off topic. Let's just say I consider the CRJ series of aircraft a much wiser investment.