I can't speak from experience but I've heard a lot of good things about voler bibs. If I'm not mistaken the Hammer Nutrition bibs use the Ion chamios which normally costs $110.

As for Hammer, they make a lot of sports drinks/gels/etc. which are regarded as some of the best. They sponsor RAAM and many other endurance events. A lot of people swear by Hammer HEED drink, and they also make what my friend calls "magic pills" - electrolyte pills.

Overall I've never heard anything negative about either company or their products.