KH310s are great monitors for the money, but I'll second what has been said here that I often find they're kind of 'soft' sounding and I've missed harshness/brashness at times with them. Also sibilance and pokey cymbal frequencies tend to slip through the net.

They measure very well on paper, although I'd be a little careful with the low-low end as unless your room is well trapped down to 30 Hz it has a tendency to get pretty wild and out of control.

The higher frequency (and gentler) roll-off of the SCM25 tends to work better in a lot of rooms IMO.