Very impressed with the GDAL development team - again :) Reported a weird issue/possible bug on the mailing list at 12:19, got a message with a PR containing a fix at 14:06 - pretty impressive.
You'd never get this sort of speed from commercial software, and in fact it is GDAL that is behind a lot of that commercial software anyway.
I donate semi-regularly to GDAL, and am considering becoming an official sponsor (through my self-employment setup) - I'd encourage you to do the same.