Hey everyone, just sent my 70-200 is ii to United Camera after two horrible experiences with Canon repair. So my lens was having this loud thumping sound and at first I thought it was the IS working but later on noticed it had to be something else. In my view finder the image from time to time jumped to the right abruptly and it was making it hard for me to shoot. Im a wedding photographer so I always need my gear to be 100% perfect. After comparing my lens with a colleague's copy I sent it to Canon VA for repair (the lens is still in warranty). I received my lens back and they acknowledge the problem, they said the optical assembly was out of position so the image could not be be displayed properly. I received it back and the problem was still there but it actually got worse and the images were very soft (before sending it the first time lens was tack sharp). So I wrote them again and sent the lens back for a repeat repair. After two weeks I receive the lens and again they said that the optical assembly was out of position so the replaced the washer mount and they did a focus ring adjustment. Received it again and... problem was not fixed. The lens was in the same condition as the first time and its really really frustrating. This is my workhorse lens for weddings and I have been a month without it. Im not happy with the Canon repair service. I decided to give United Camera a try, I talked to them via phone and explained my situation and they guaranteed to fix the problem and keep me updated with every step (which Canon never did). They also sent me a next the shipping label paid which was very nice of them. So to end this long text.. have any of you guys have had any experience with United Camera? and also Have any of you have had any similar experience with Canon?