I don't have a Trinovid HD 10X42....but do have a 8X42 HD....nice binocular. Saying that....if I were to go buy a $800-$1000 10X42 it would be a Zeiss Conquest HD all day long. It's hard to beat in this range. My example has been without fault. The only negative is it's about 3 ounces heavier than the Trinovid HD and maybe a little bulkier. I'd also look at a Monarch HG....which I have the 8X42 model of this....A little lighter and a little more FOV.
The Conquest HD 10X42 w/Schmidt-Pechan prisms transmission, according to allbinos, is 93%. The earlier Conquest 10X40 w/Abbe-Koenig prisms was 93%. Both Conquests have T* antireflection multicoatings though I readily agree it is possible that the HD coatings might have been upgraded.
I own the 10X40 though have never viewed through the HD. [Yes, I've heard they are better many times especially in the reduction of distortion]
I have compared the Conquest 10X40 to the Trinovid 10X42 [which has a better 10X class FOV 114M/6.52 than the 8x42 Trinovid in 8X class. Allbinos measured the Conquest HD 10X42 at 6.51* so that aspect is a wash].
There is no allbinos review of the Trinovid HD, when they do I'm sure it will not score 10/10 on distortion, Leica claims a mere 90% transmission.
That being said the colour representation of the Trinovid to these eyes is more vivid in a side by side w/10X40 Conquest. Full sun to low lying completely overcast clouds. All colours have a bit more pop to me.
Regardless, I'm sure either bin would be more than sufficient. As a disclaimer
I have a mild cataract in the left eye and have had cataract surgery in the dominant right eye w/AMO Tecnis 1 piece mono aspheric intraocular lens. I do not require corrective lens for driving, but I'm not 20/20 either.
As always, YMMV ...