O....M.....G Alone its awesome but also try mixing the IR with another cab in stereo like the M75 4x12, OwnHammer Bogner G12M 4x12, etc. Amazing This is the perfect SLO100 sound....for me at least. This firmware really upgraded this particular model as it meshes much better with different IRs now. One thing Ive noticed is the SLO on FW10 has much more gain on tap, like massive liquid gobs of molten lava gain, much more than ever before. Where before Id prefer the Drive setting on 4-5, now 3 or even 2 on the dial is more than enough. The sustain is mind blowing. Oh....if youre playing alone or at home make sure to dial the Depth knob to 2.0 . Its the hugest, fattest, clearest, most holy shitballest lead tone on the planet. Ive wanted an SLO since I was a little kid. This Firmware took away some of that craving. Im definitely planning on owning a real one in the future though.