Those grips are perfect for long epic rides on fire roads ,
most of the riding here in NJ are in tight trails and they feel a bulky - since they are beefy, my hands are not locked over the grips which giving me less secure feel then the traditional design .
in addition , the bar-ends which are helpful during long climb can be dangerous here ... I'm planning to replace them with more traditional grip.
Its a personal preference thing. Depends where you ride, your riding style, your bike position, bike setup, etc. For me, I take them off and on. For longer rides, they are good. They are also good in the winter for me since my hands get so cold, I notice a difference with these, probably because of less pressure on the ulnar nerve which keeps my hands from getting numb too fast. Generally I prefer a round grip (esi cush is nice), especially when I go to baldplate or round valley or anywhere technical.