Some hints:
1. DxO is a very decent RAW converter, and I have used it on a regular basis, V4 is pretty good at least,
2. Many people who never bothered trying - or didn't like what they saw - use DxO only to corrected distorsion, and output the result as a DNG file that can afterwards be processed by the few converters that support DNG (mostly Adobe ACR and Lightroom).
Regards,
Bernard