I have one, it was the first aftermarket trigger I ever bought and compared to the few stock triggers I had experience with, it felt like I couldn't honestly picture how a 2 stage trigger could be better, until I bought a Geissele.
For $80 I believe it is a fantastic value and the break and reset is excellent. If they sold them at the same price of the Geissele, I would think the same thing honestly. In that case I believe it would come down to the profile preference. I personally prefer the Geissele because I prefer the mil spec profile vs the wide flat. Honestly the crispness of the SSA and MBT-2S is very similar, but the pull weight feels like about a pound heavier on the Geissele which I like, and the reset is a lil more positive.
Not taking nothing away from the LaRue, I believe for a long range precision setup ir a Varminter, the LaRue would shine over the SSA, but for general purpose carbine setup, I would lean toward the Geissele, any Geissele.
I also like single stage triggers, and the BCM and PSA Enhanced Nib triggers are also excellent. I like the crispness of the SSA and also the fact that it has a lil heavier pull weight, although I never did try the 6# spring that comes with all MBT's, that is something I've been meaning to try.