The In Win 503 comes in at an excellent 70 US dollars, which should be a great selling point right on its own because of its cool looks and choice of two colors. Its excellent construction quality and use of glass in front make it a great chassis for mainstream builds, but it would also get away with higher-end components without feeling out of place. The 503 offers all the features you could ask from a chassis of this price point. With the ability to install a fully sized ATX board, long GPU, and large CPU cooler, gamers have enough room to plug in all the important components, and the large window allows them to show those off the next chance they get. All these aspects work extremely well together and make for a very good chassis.
However, there are some "head scratchers" as well: In Win supplies a basic set of screws, so you will have to hunt for more if you want to install lots of hardware, and while the gray I/O cables are now black, the standard case connectors are still of the colorful variety, which is something other manufacturers have tackled with cases at this price point. There is also In Win's choice to offer a USB 3.0 connector in combination with two USB 2.0 ones. While it is great to have both, it would have been more appropriate to go for two USB 3.0 connectors to make the most of that single motherboard header.
All the other things we found to be faulty within the In Win 503 are just small annoyances, like the neon-green ODD lock or the motherboard's rather tight fit. With a bit of patience and some planning during assembly, you will be amazed with how the In Win 503 looks and that all your parts snugly fit into its solid structure. Those are, after all, the most important aspects when it comes to buying a chassis for less than 100 US dollars.