Alright, I've been using it for a week or two now, and it's kind of strange. It does boot 3-5 seconds faster than with menuhax, which is nice, but it's actually been LESS consistent for me than menuhax ever was. Freezes about 1/8 times for me, whereas menuhax was only around 1/15. I'll keep using it (mainly because I'm too lazy to recreate my old payload), but it's something worth noting.
Not sure if it matters, but I'm using the rxTools payload as less.3dsx and ignoring CTR Boot Manager completely, because I don't really ever have to access anything other than that with menuhax.
O3DSXL, sysNAND 9.2.0U, GW emuNAND 10.7.0U with rxTools.