I have two TR-24Gs (1-4x with green triangle reticle). One is on a SCAR-17 and the other is on an AUG. I think they are great for my intended use. The glass is good for the price range, and the adjustments seem to track well.
The adjustment knobs on mine are covered, which I like for carbine use. The knobs are low, but fairly large diameter, and have snap-up/snap-down zeroing.
I think some older models with 1" tubes lack the rotating cover over the fiber optics to give you some brightness control, and I'd really miss that.
They seem rugged, however, the one on my SCAR crashed and burned. In a 3-gun match, the scope was either not holding zero or I was shooting extremely poor... then at the range the next day, something came loose inside. I sent it back and they replaced it. No explanation of what happened.
There are a few of them in use in 3-gun, and when I've told about that one failing, everyone has been surprised. Poking around tactical and competition forums where that model gets a fair amount of mention has turned up no similar stories. I've chalked it up as an exception.
I'd buy another. I've thought about getting the 2.5-10x to keep in QD rings as a second scope for the SCAR.
If they came out with a 1-6x or 1-8x, I'd jump on it.