I'm being torn here I keep hearing that this movie is some people's least liked MCU film, While others love it. I know opinions and all but the opinions are all to the so extreme.
And I loved Big Groot, but Pachimari saying baby groot is fucking annoying kinda kills it for.
Dude, don't take my opinion for being the de facto anything. Don't let anyone's opinion persuade you. I really do think you should go watch it without thinking too much about it, and just take it from there and form your own opinion. I can see how someone would totally love Baby Groot too, but case in point, this one character is not what makes or breaks this entire movie.
I liked Baby Groot, not loving him, but concedes that his scenes tends to be dragged a bit too thin, and the stick gets a little old but this movie is more than just Baby Groot.
There are great things about GotG2 and there are some not so good stuff in it.
Go watch it, or don't. Just don't form opinions based on not having seen your movies.