The creator judges the product compared to their imagining of what they wanted to make. Yhe piece invariably falls short (because our imagination is better than our skillset.)
Everyone else simply looked at the piece objectively. It was either beautiful or not.
I started to look at programs the same way. The criteria for judging my program differs to the criteria for judging other programs.
So for my software I care about architecture, clean code, the language I used, how clever it is.
I judge others by their UI, documentation, support, correctness, intuitiveness etc. I hate when their UI constantly changes. Even small (cosmetic) bugs turn me off.
But my stuff has no docs, the UI is butt ugly, there are some rough edges, but if you avoid the bugs it gives you the right answer (very fast) while consuming less ram, disk, or cpu. And I used new-framework or popular-new-language and runs on any OS etc.