The Vegas gold jersey is a great third jersey, and that's it. It does a great job of creating continuity within their look established by the original set, and its sparkle and shine is aesthetically suited for a team from sin city known for the glitz and glamour of the strip. Hence the “That’s So Vegas” slogan that was used to promote the jersey when it was unveiled.
However, for a main jersey their grey sweater was perfect in almost every way. The way the minimal use of red would pop on the sleeves, the dazzling golden armbands with the embossed pattern was a perfect way to use a glittery gold color without overdoing it to the point of it being jarring, as well as being the most eye catching part of their look. The logos featured a significant amount of black which they balanced nicely with the striping, black pants and their base dark grey color.
People criticize the road jersey for not having enough black or working better with the gold third, but I think it was fine, their was enough black on the logos and on the collar for them to wear black pants and it fit far better with the grey sweater than the gold, after all they were designed for each other. The gold armbands and waist stripe on the white jersey but white armbands and white waist stripe on the gold jersey looks off. The matching use of gold on the original home and road is superior. The lack of black on the third is negligible as a third, but then you drop the black pants from the road jersey and go heavy on the grey, and the gold jersey is too heavy on the sparkling gold which the white lacks and you create a color imbalance. It appears as if the gold color should be the predominant color on the road after white, similar to nashville, but for some reason it's the grey color. And then little to no black anywhere but on the logos and just on the road collar only which creates a minor yet unnecessary inconsistency.