A few of the keyboard shortcuts are a touch non-obvious, and in the early days I had some difficulty with task database corruption—I have a TON of items, projects, and areas. Those are the general quibbles.
The personal one: it amuses me to no end that while the latest update as of 2023-09-06 now includes vector graphics and dynamic scale, in 2009 they threatened to sue me when I demonstrated what might be possible using them by showing a tiny bit of HTML and CSS. It took 14 years to implement the functionality. 14 years.
"…or even talk about the fact that you copied the design, it has the potential to hurt us and cause damage to us."
Welp, now this review is here. The quibble is now happy to be seen.