I do not have any other higher end optics for comparison. Here is what I can say from memory having owned a March F 1-10 Shorty, SWFA 1-6 HD, NF ATACR 4–6, and a Vortex PST 2 1-6:
The 1x is better than the SWFA 1-6 and IIRC the March F 1-10 Shorty. A Vortex PST 1-6 beats it at 1x, no surprise there though. Illumination is as good as the March and far superior to the SWFA. The overall 1x performance is better on the PST, again no surprise as thats a good SFP optic optimized for 1x.
Overall construction feels very nice, I would compare it to a NF ATACR 4-16 I had. As I mentioned above, the turret clicks on the ATACR was slightly better, but the zero stop of the T6 is far superior.
The T6 probably has my favorite LPVO reticle I’ve looked through for my uses. If 1x performance is your main goal, I would seriously look at other options like a Razor. The 1x is good, but the optic shines at 3-6x magnification combined with the excellent turrets.
I consider the T6 a “DMRs LPVO” and not an “assaulters LPVO” if that makes any sense.