I go to Starbucks to do work. I can rent a desk therefor a few dollars an hour. I get a reasonableinternet connection and for some reason, I can focusthere. The coffee is not that great but I regard it asfee.
I believe the reason so many people enjoy it isbecause Starbuck's espresso is a dark roast with astrong (dare I say bitter) flavor to which, when youadd sweet and creamy ingredients to, you can still taste the coffee. That's key. Starbuck's coffeegoes well with cream and sugar, if you're into that. It's strong and bold no matter what you doto it.
In my experience as a Barista I've tasted some beautiful, single origin coffee beans, mediumroast, they had interesting and varied flavor profiles (sometimes "tea-like") , and they were alldelicious as is, black, but it (practically) ruined them if you add cream and sugar.
If someone likes a strong cup of coffee, to which they like to add cream and sugar to, theywould typically complain about a light or a medium roast.
Ultimately, people like what they like, and they don't really care why.
You need to broaden your interpretation of what the words 'good coffee' mean.
If you're an Italian purist it means the quality of the bean, where it's bought in from, how it'spressed and then served into the cup.
But you (I'm taking leap here) live in NON-MEDITERRANEAN country. If you do. Here is what'good coffee' means:
Finding a convenient 'reason' to sit, relax and do nothing with the people you love/care for.
So yes. Starbucks do do 'good coffee'.