In my opinion, it does exactly that..."warming" is a good description.

I had the para eq set to roll off highs and lows with a slight mid boost with my favorite Matchless patch, but since adding the EPSi, I've removed the mid boost and now need only a high/low shelf...basically set flat other than the bandpass. I still need the para eq to roll off the highs, (I set a 3.3k shelf), so the IR isn't perfect on it's own, (for me anyway), but needs nothing else. I roll off the lows at about 70hz, which is where the CLR drops off.

I bought the Modern Studio Mix for the Marshall 4x12 from Ownhammer yesterday and just got started auditioning cabs, but I'm very impressed so far. I bought the EV thiele 1x12 set last week and thought that was it...until I started listening to these new cabs. So good...really a huge improvement for me.