No it's not, the autopilot on those things is ****. I have extensive first hand experience.
Same for the Q400. Most pilots hand-fly onto the Localiser and then (possibly) re-engaging the autopilot.
Even then it's not a guarantee. After LOC capture, you still have to be prepared to disengage and hand-fly in case you drift too far off centreline.
I was once called "Tracking" with the ILS captured, AP engaged (had been for a while) and we were almost half-scale deflection with a 15kt quartering tailwind. Luckily for 34R and the wind blowing us away from 34L.
DIVOSH!