I tried out the extended picture styles on canons site without expecting much but found Emerald to look very usable after some tweaking. I normally use Faithful contrast:2 saturation:2 which doesn't need grading in post but I after today's short test I can see myself trying Emerald on next shoot. I think anyone that likes the warm tones of faithful will like this one.
Yeah, they introduced a few new ones at some point (I think years ago).
I've never been a fan of any colour alteration so I shoot on neutral, but I like their Video-x they introduced (for when I shoot video).
I could be mentioned that not shooting flat is challenging. Exposure and WB must be spot on or you're screwed. Having a calibrated external monitor is the only way. Luckily you don't need to spend big money on dedicated hardware, LV mirroring can be done several Android phones and tables that allow display calibration after rooting.