I don't think there is any doubt that it is a good aircraft if utilised correctly. SAX unfortunately did not read the fine print. How about 700 - 800nm sectors?
Also, they are quite expensive and initial projections are that they will cost at least the same to operate as the CRJ. Obviously it has 24 seats more, but you have to fill them first......
Lets see how the first two in SAX service behave. I hope that they do justice to the hype.
In any case, with the possible exeptions of the 727 and the Piper Cub, ANYTHING climbs better than the CRJ.