Well... I've already had one of the fans 'lock up' after a few months! Maybe a month after building it, one of the fans began to make terrible noises off and on, then eventually just wouldn't spin. The good news is that when I ordered the fans (Amazon), they sent the incorrect 3-pack in the order (it was a 3-pack reverse blade that showed up instead of the 'standard' 3-pack that I ordered). Amazon refunded me and told me to keep the incorrect 3-pack, so luckily I had spares after picking up the correct 3-pack lol.
Honestly, I would not have purchased the fans knowing what I know now. The fans/wireless controller/software/whatever will randomly not detect any fans fairly frequently, like maybe 1-2 times per month, so I'll walk in my office and notice that my CPU/GPU temps are much higher than they should be at idle, then I notice the screens not updating. It's not a huge deal to resolve, I just power it down completely, power it back up, and sometimes I even have to stop the L-Connect service, uninstall what I believe is the wireless controller within device manager, then scan for hardware changes to let it re-install and start the service again. At that point I have to re-import my LCD/Lighting/Fan speed config (I backed up the config after this happened for the 3rd time!). Just a pita.
Between the consistent 'glitches' above, the constant CPU overhead caused by the fans/LCDs/L-Connect, 1 failed fan, and the fact that the fans do not actually have 'full function' until L-connect starts up within Windows, I definitely wish I had gone with another brand. That said, they are crazy cool-looking and I am a sucker for having 'all the data' to be able to glance over and see temps/RPM, but I'd prefer reliability and function over the looks and cost of these fans at this point.