Simple answer: Buy one, you will not regret.
Longer Answer:
I have 2 Triarc 12.5" uppers, both with the Track rifling & chambered in 5.56. I have owned and put significant round counts on rifles from BCM, SOLGW, DD, HK, KAC, FN, Colt & Noveske (I've missed out on all the Hodge sales so far
.) The Triarc's are what I have found myself gravitating towards whenever I need to use a carbine. Between the two I have just south of 11k rounds through them. For context, I have them set up with Law folders, A5 buffer systems, & Surefire Warcomps. I run one suppressed with an RC2 Mini & the other stays unsuppressed most of the time. I originally had one of them set up with the Thermal Defense Bantam II suppressor for the first 2k rounds or so, but I ended up putting it on an 11.5 rifle & using the RC2 on the Triarc. Suppressed gun has a Triarc NP3 coated BCG (ease of cleaning) & the other has a standard SOLGW BCG. I have been extremely impressed with the durability, accuracy, & reliability of these rifles. Both guns, whether suppressed or unsuppressed have an extremely smooth recoil impulse. I regularly take them out to 400+ yards on steel with a T2 & K16i.
I run BH 62g TSX as the primary defensive ammo for these rifles. They both love eating the 77g OTM's, 77g SMK's, 62g Vortx, & I can't remember any ammo actually shooting poorly outside of M855 & that accuracy was really only poor in comparison to the other, which is expected. As for training courses, I generally use 55g/62g Aguila & 55g Fiocci, which has proved to be adequately accurate for demonstration & training purposes.
I've been extremely happy with other products from Triarc as well. Their craftsmanship and attention to detail truly reflect their drive to deliver top tier products for professional end users. The guys that work there have always been great to work with and readily available. They have some cool projects in the work as well.
I have a 6mm ARC planned out & the proof barrel I ordered will be going in a Triarc receiver set with a Tri-lok rail around it.
These are my go to carbines for teaching, training, & self-defense. When not on the range/work, its usually by my bed or with me in the truck. I have some courses this weekend and I will try to snap some photos of the on paper performance.