Pretty nice looking I think, and a big part of why no one makes fun of his hair anymore. There's nothing to make fun of. (The other reason probably being he's not really working much these days.)
If I didn't already know already I doubt I would think anything unusual about it. If anything, I'd probably be jealous.
You can click the pics to enlarge them:
http://hq-celebrity.com/photos/maria-men...menounos-4
http://hq-celebrity.com/photos/maria-men...enounos-11
http://hq-celebrity.com/photos/maria-men...menounos-2
Here's an older one from 2007. It also looks nice, but I definitely think his newest pieces as above are improved. The weight loss helps too.
http://www.blogcdn.com/www.cinematical.c...er---9.jpg
It's particularly impressive to me because he's using such a short style. Even a half inch longer would make it so much easier to pull off on the sides, but the new ones in particular work well anyway.
Also, here's a super hi res pic of his good early Star Trek days. I wasn't honestly sure people were right he was even wearing a topper back then it looked so good. But now maybe I can see a hint of shine/lace.
It really makes you wonder why he started wearing those awful chia pet rugs for all those years between.
http://www.canadiancontent.net/people/i/...hatner.jpg