I really love this bag. Its not too big neither too small the size is just the proper one. I have a Nikon D5100 and it fits very well and I like the fact that the camera with the kit lens on doesn't reach the bottom of the bag. Also the camera feels safe and tight in place. Also the pockets are very helpful and the straps to hold a tripod seems to hold well a tripod there. Also is very comfortable to wear it. However if you have a lot of stuff you might need something bigger, for me works fine since I don't have to many this to carry there yet (1 DSLR, Kit lens, 1 remote, 1 charger, the cables, lens cleaning kit, sometimes cell phone, etc). 

Question: How is the strap?
Answer: the straps to hold a tripod seems to hold well a tripod there