This lens is the bomb.
You want to have an equivalent of a 300mm f/2.8 L on your 7D???
The Canon 200mm f/2.8L II is it, and it's actually way more versatile since you can sling the thing around as fast as a western gunfighter. The balance is perfect, the most perfect handling of all Canon lenses in my experience. The 135mm L is a little too short, others a little too heavy or light, many too long. If you're walking around you'll get far more tired and far fewer pictures lugging a camera with the 70-200mm lens. Much better if you have this lens on one camera and a wider lens on another camera.
Recommended times 10,000.
5DIII, 5DII, 7D x5, 6D, T2i, T3, 1D X, 10-22mm, 16-35mm II, 18-55mm II, 18-135mm IS x2, 70-200mm f/2.8L II, 24mm f/1.4L II, 50mm f/1.4, 50mm 1/1.8 II x2, 85mm f/1.8 x2, 100mm f/2 x2, 135mm f/2L x2, 200mm f/2.8L II x2, 1.4X III, 2.0X II, 60mm f/2.8 Macro, etc. only had room to list a few Canon items