I can't comment from a pilots point of view, but as no one has so far I will add my two penneth from a passengers viewpoint.
I actually like the 146. I find it comfortable and despite its relatively small size not as cramped as some of the alternatives.
The size of the overhead lockers between rows 7 and 11 (due to the high wing configuration) can be a problem if the rest of the SLF brings the normal large quantities of hand luggage but generally this is not insurmountable.
I understand that it is a relatively expensive aircraft to operate/maintain but I guess that cannot be too much of a problem given the number of aircraft in service. It fulfills a niche roll very well, there are very few other (if any) aircraft with a similar passenger capacity with the same short field performance.
Ok, it's not a 1-11 but I guess I am unlikely to fly on one of those again!