[tracker1]

I'm going to have to completely disagree on Bootstrap. The use of Bootstrap isn't an indication on a lack of quality, it's an indication on a desire for a decent UI from the start. The fact that it was widely used isn't necessarily reflective of a given app.

Bootstrap, Material, etc. are all just established tools in terms of visual usability and consistency. Many people are far more concerned about having something functional over something that looks completely unique or different.

Personally, I tend to dislike most UI/UX experiments in terms of usability. Not all, but definitely most are just bad compared to what most people are used to.