Not really, it all depends on your threat model and how high it's set.
You will ask me to use duckduckgo.com for my search engine? I have no problem to use tor browser in fact I do use firefox with tor connection but asking me to use duckduckgo.com is boring.
I do not like it. The annoying part is that everytime when you are going to search for anything you are starting it from the scratch since the browser does not know anything about your interest, preference. I know that's the goal but these days we are so much addicted with technology that if you ask someone to add 122 + 123 (just picked some random number) then they will look for a calculator.