Extraordinary amount of work does not guarantee extraordinary quality or results, not even ordinary quality.
> Anyone who has spent a decent amount of time on the mobileread forums will also know him as a remarkably intelligent, dedicated, and all-round fantastic guy.
Reads like a working para social addiction. Anyway, whatever qualities one has, doesn't matter. One can be nice, and still fail at important things. Those things actually happen all the time and somehow people are always surprised and defending.
> The proof of the pudding is Calibre itself, which is a joy to use.
Opinions are very divided on this part. And as someone who had several hard problems over the decade, including multiple data loses, I'm very far from calling it a joy. It's useful, and if you know your way around the flaws it will also not a harsh experience, but a joy it was never for me.