OBVIOUSLY when I talk about something that tastes good to me I am talking about my taste. However, the massive success of these brands is an objective measure that they taste good to a big part of the population.
What tastes better than Nutella? I have tried expensive stuff but never found something as good as my own, let alone Nutella. I want it sweet but not too sweet with lots of chocolate taste. But not too much chocolate, also dem nuts. Well pretty much like Nutella I guess. I can think about making Nutella better by adding more chocolate and nut, but then I would still be mostly eating Nutella...
For chocolate, the bitterness and slow melting make high cocoa ones taste worse for me. The same way white chocolate is too sweet and... well not chocolate. There is a sweet spot and they hit it.
If previously there we 1'000 uninstalls per day, not there are 1'500. Relative numbers like that are useless.