The big gotcha for Vue2 was the performance when you wanted to display a list of like 10,000 things. I like to tinker with data and a lot of my day is spent on an sql prompt inside of emacs watching results sets of 1,000 rows or 50 columns just fly by so I can search them visually. Having to remember to "freeze" things for performance or create simpler "views" of the model I'm playing with is sometimes jarring.