Got mine 3 months ago as well, and long story short, I needed to go back to my rubbery crapboard, because this one gave out.
The LED on my period key went out a couple weeks ago. The USB connection started to fritz out around the same time. I needed to wiggle it just right to get it to connect (something I HOPED wouldn't be a problem with MKs), and now it's not connecting at all. I'm going to have to go Mystiq's route and break out the soldering iron, because I am highly skeptical of Keycool doing anything about the problem.
Anyone thinking about this MK, you get what you pay for. It's not the high quality that a 3-figure board would have, the key legends are hideous, and it's a bit more spongy than I was expecting. To be fair, this is my first MK so take all that with however many grains of salt you deem appropriate.
UPDATE: Board seemed to go kaput earlier today so I cracked'er open and had a gander inside. I didn't realize how many granola bars I must eat over this thing, so I gave it a good airspray, and checked the connections. I didn't think the miniUSB connection on the PCB itself looked loose, but I made sure to disconnect/reconnect and solidly mate the two. After that, it's back working.
I stand by my earlier aesthetic evaluation. If this is your first board, it might even be the best route, because it's ugly but utilitarian, affordable without being a world-changer. You might have to do some very elementary surgery, but it's a good start before you start pulling off switches and soldering new Cherry MXs. Again, YMMV, take with salt.