It's fun to use, I agree. It's my second favorite Halo utility weapon after the CE Pistol. The problem with it is the impact it has on player movement. It's just too effective at range. When everyone is using it, it can be impossible to move on big, open maps. It was the same way in Reach -- moving across Hemorrhage was a challenge when a full team was pinging you from across the map. But that DMR had more bloom, so it was a bit better. A lot of people prefer weapons like the BR, which is really strong at mid-range and competent at long range, but can't act as a mini sniper. One solution people have had is making the DMR an on map pick up weapon.