I have, the pictures associated with this product are for the wrong bag, this bag is actually *really* small. I can fit my rebel T3 in the bag but I have to take my 18-55mm lens off the camera body and I have to stack it on top of my 75-300mm lens to fit it all in the bag. It's a good bag for a beginner but if you're a serious or professional photographer with a lot of equipment, it's not for you
I do not have that camera, but think it would be a very tight fit. I would think this larger bag would be better for your camera and lenses, "Canon 2400 SLR Gadget Bag for EOS SLR Cameras". The Cannon bags are of high quality, I recommend them. If this other camera does not suit your needs Amazon has a good return policy.
I have my T3i in this bag with the 18-55mm lens on the camera. I place the camera sideways and face up in the bag with the strap folded on top next to the lens, and my 75-300mm lens fits next to it on the left side, and I have a small case with cleaner, etc., on the right side. It took some experimenting, but the partitions are velcroed in place and can be moved around or removed altogether. I keep filters, lens caps, an extra card, etc., in the smaller compartment in front. I did also purchase a padded lens case so that I can take both lenses with me when I don't want to carry the whole case (on hikes, for example), but it has otherwise served me well and is a decent quality. Yes, it is all a snug fit, but it forces me to be careful about handling my camera and lenses, and I think that's a good thing for me. I agree that it is good for someone (like me) just starting out, and it will be outgrown eventually, but I also think it is a good investment.
I have the 55-250 on one side of the main compartment (behind/under one of the movable partitions), and a flash and its charger on the other side, under the other movable partition. This leaves a "T" shaped area in the main compartment, into which I put my T3 with 18-55 lens. With the lens fully retracted, it all fits nicely, and I have room for the camera charger and some other small accessories in the front pocket.
I do not think my current arrangement would work with the 18-135 lens; it would be too long for the "stem" of the "T". But I do think I could move things around to make that lens work with this bag -- maybe even without having to leave a charger at home. My current configuration has a moderate amount of unused space around the camera body at the "top" of the "T".