Sony DualSense Wireless Controller VS Corsair K100 RGB
Verdict DROP IT DROP IT
The Reality A class action filed in February 2021 by Chimicles Schwartz Kriner & Donaldson-Smith on behalf of PS5 owners alleges the DualSense suffers from a 'drift defect' that moves on-screen action without any player input on the joystick. The complaint alleges Sony was aware of the defect through online consumer complaints, direct customer complaints, and its own pre-release testing, but failed to fix it. According to the filing, subsequent software and firmware updates did little to resolve the issue, and customers with in-warranty controllers still had to ship them to a repair center at their own expense. iCUE's real-world reliability record undercuts the 'seamless' framing. On Corsair's own community forum, users report iCUE's automatic updater repeatedly failing and, in some cases, uninstalling the software entirely rather than updating it. Independent outlet PC Gamer has criticized iCUE more broadly, with staff describing it as 'at best, an okay piece of software, and actively annoying at worst,' citing stability problems including the application consuming as much as 19GB of RAM during continuous multi-day use. Corsair's own response was to build a separate website letting users authorize browser-based firmware updates specifically so they could bypass iCUE for that task.
SHORT ANSWER
Sony DualSense Wireless Controller: A 2021 class-action lawsuit alleges Sony's own pre-release testing found the DualSense's 'drift defect' before the controller launched, and that subsequent firmware updates failed to fix it, leaving owners to pay for their own warranty repair shipping.
Corsair K100 RGB: Corsair markets the K100's iCUE software as seamless, but users on Corsair's own forum report the updater regularly failing or uninstalling itself, prompting Corsair to build a separate browser-based tool just to update firmware without iCUE.