PortaBrace Quick Slick Rain Cover for Canon XF605

Tired and Retired I spent a long career designing high tech stuff that is sold worldwide. I do not envy the person whose job it is to design a rain cover that will fit several different brands and models of video cameras. However, I understand the challenge and it does not seem like this cover's designer was up to the task. Here are my observations: The flap designed to cover the attached external mic is so long that it can be seen flapping into the field of view past and in front of the right side of the lens hood. There does not seem to be any hook and loops available to control this problem. The window material is sufficiently thick to be unruly and remain permanently wrinkled making it harder to get the cover to cooperate. Mine has a weird fold in it, caused by a hastily done sewing job making it slightly more cumbersome. I'd bet in cold weather, this thick plastic would be very stiff and hard to get along with. The manufacturer decided to use an apparently non-water repellent elastic cuff (similar to the wrist cuffs inside a winter coat) that stretches around the viewfinder. I would think that water ingress through this material could eventually allow water into the camera. There is not one word of instructions. Yes, we can figure it out ourselves but there should be some printed instructions included. Also, their website does have an instructional video but their wooden camera mock up for a different brand of camera and the presentation could be better. There is a rubberized piece of hook and loop that I believe is supposed to be a non-slip contact to the lens hood by its tackiness but it is insufficiently tacky to remain where it needs to be. It kept sliding off the edge of the lens hood being pushed off by the hard transparent plastic window material. There are lots of hooks and loops but some don't seem to have a mating piece and others are not obvious how they are supposed to work or where they go. With patience, tinkering and multiple readjustments (gets easier with repetition) the cover will go on reasonably easily but getting the cover on and adjusted is certainly not run-and-gun. They included a separate piece of repellent material with one strip of hook and loop but without instructions included with the product, I do not know what their intentions were for this piece. Overall, I like the water repellent material from which most of it is made, I don't like the hardness of the plastic window and its apparently permanent wrinkles nor the apparently non-water repellent cuff material at the eyepiece. It was hard to figure out at first but it can be managed with patience and practice. I'm giving this item a three (3) since it could be much better, even for it's low cost but it actually would work to some degree if needed in a pinch. I just wish it were better overall. Now I'll have to buy something more expensive to get something I trust for use with my expensive camera.