Needless to say, a good development indeed.
Such Self Propelled guns are much cheaper to build, transport, and maintain compared to tracked SPH's like the M109.
Their only real faults are they often lack a real fire control system which makes them not as accurate and as as somebody already pointed out, the likely get a lot more wear and tear than heavier tracked SPHs.
So one wonders if this new gun has a modern fire control system or not?