I also still own IQ and still use it from time to time. Albeit some of its faults - incoherence between DD and BA, sibilant highs and upper mids - I consider its technical ability to be nearly on par with contemporary flagship IEMs. I did a back-to-back comparison with Dita Twins Fidelity some months ago. In terms of detail retrievals, sound stage and imaging, I believe that that IQ comes close to Dita Twins Fidelity.