The author does not seem unreasonable with their critique. The response to any critique shouldn't have to be, "write your own software, if you don't like it!".

The author does not seem unreasonable with their critique. The response to any critique shouldn't have to be, "write your own software, if you don't like it!". You know, just as well as any of us, that writing software is hard. UI is also hard. It would be good to learn from any critique.