I've been using the Quad+ since April. Internal HDD, two DVB-S2 and two DVB-T tuners. Used across OpenMIPS, OpenATV, OpenRSI initially and, since June, on ViX. Apart from an issue with playback of recordings from about ViX 025 to ViX 040 caused by bad drivers and the current FF and REW issues it's been pretty flawless. It records 30 or so programmes on autotimers every week and wakes up from deep standby dependably. Apart from minor niggles in some plugins caused by minor coding issues and quickly fixed I would say that the box is rock solid. My other half has transitioned from using a Humax Freesat box without any issues, especially as we are using the same universal remote where I was able to map the Quad functions to the same buttons as were used on the Humax.