Even though I rated this a 4, that's only to reflect the general quality of the product, not its actual usefulness. MSR has a reputation as a quality product provider, and so far this chart holder stands up to that reputation. MotoSport has little to do with the product itself. first...it's plastic. bound to give out sometime, but it took a beating on a spill I had during a race recently and suffered no damage. 4 stars for that. the lid doesn't open easily which is both good and bad. good, in that it won't fly off during a crash and then soak your route sheet in the rain. bad, in that you have to use a small tool to pry it up when you need to add/change route sheets. not entirely handy.... just my 2 cents. maybe others with ghoulish wolf claws can open it with relative ease. 2nd....it's mounted on the metal frame of a desert light I currently have on the bike. when I put the stock shroud back on I'll have to figure out where, or if, to mount it again so it's easily visible and accessible (i.e. useful). I have 1 1/8" fat bars installed and the ring clamps supplied are not big enough to fit. a bigger clamp could be used, but if you don't have one, you have to get one. potential matter of inconvenience, but no big deal really. and it wouldn't matter on my bike anyway, because my handlebar setup is pretty busy and I just don't have sufficient real estate to mount the chart holder to the bars. a rating of 4 is for product quality. it'll hold up for a while, but I won't expect any endurance miracles. lastly, I'd give MotoSport.com a 5 on service. the website is easily navigable (doesn't require a route chart or holder to do so :-) ) and product delivery was prompt. order was stocked as advertised, and communication (order confirm, shipping confirm, follow up) was as expected for online purchases. will do business here again in the future. re: usefulness....personally, unless you're riding at a crawl, it's difficult to scroll through route notes while trying to dodge trees, rocks, ruts, etc. which kinda makes use of this product a moot point. might be good if you get lost and have to stop. then you can easily scroll the route to determine where you went wrong. otherwise, kinda pointless.