Well, if it's true, it's quite good. A comparable aircraft uses about the same or a little more, an Avro RJ 100 2200 kg/h, a F100 2000 kg/h, a CRJ-900 about the same. What else? 736 and 318 about 2200. The CS-110 is promissed to use less with it's GTF.
Costs for maintenance is quite good, as I heard, without knowing any numbers. Capital costs might be above average, because it's a rather new aircraft.
hth,
Dani