Yes, I love Squirt! Just not for my main summer bike
It goes on literally everything else, from winter bike, to kids bikes, to commuter, the whole lot. I'd be tempted by Synergetic from Silca too, but cost difference, and none of the aforementioned bikes benefit even a little bit from performance increases. Nor do they get ridden thousands of miles a year so the chains aren't exactly wearing out anyway!
I come from a background in physics, with interest in material science, so the science behind how chemicals react and the resulting properties is my jam! I understand why some people think it is snake oil because waxes visually don't seem much different. The best argument is to think carbon fibre. Is Trek 800 series OCLV carbon snake oil, when the 500 series OCLV carbon is still carbon? The frames can be thousands of pounds difference!
I've worked with a graphene company before so I've seen enough to be confident that the graphene stuff from Absolute Black is going to be wonderful stuff. But looking at the science behind titanium disulphide it looks like it's going to have even more of a major impact on high-performance lubricants for metals, so the Silca stuff should be a league above the graphene stuff. I know some people who use Silca, and are even more nerdy about this stuff than me, and they absolutely swear by it. So I'd take their word for it ahead of mine!
The science bit:
The idea behind titanium disulphide is that it bonds to the very outer layer of the metal, and fills in the minor imperfections in the surface (we're talking micro-scale though, it's not going to fill in a big gouge!). It's super slippery too! This means you have created two super smooth surfaces at the molecular level coated with something super slippery.
The wax itself provides almost no lubrication itself as the nanolayer coating is doing it all. BUT, the wax replenishes the coating as it gets worn away, and a chain chock full of the right type of wax keeps dirt ingress to a minimum.
So you're literally saving watts that you would otherwise be using to eat up your chain!