I just bought a 24-105 recently and it's been transformational for me shooting video - it's just a very versatile lens that has great IQ. Shooting handheld, the IS and the slower aperture are both good features. My work falls under 2 categories - shooting interviews (which I usually shoot at f4 or shallower) and b roll, which I usually shoot at f4 and slower). The fact that I can travel on assignment and step out with the 24-105 and get good b roll coverage without heavy weight is fantastic. However, keep in mind that I use this for work - I'm not shooting arty pieces, I'm not shooting drama, I want what works, quickly, so I can get my b roll coverage and move on. For that, I think it's about the best lens. I came from a 28-70 Angineax 2.6, and while that has amazing IQ, it was less versatile and I rarely used it wide open anyway. I still have it but not sure if I'll keep using it.