Is the impact of globalization positive or negative?

Is the impact of globalization positive or negative? 

It's very hard to determine is the impact of globalization positive or negative? 
I think that is good, that we can taste for example Asian food, not only our national dishes. most of countries have more common access to the food, medicine, technology and culture and I think that's good.
However, from the other side countries lost their variety and natural beauty. If I would buy oscypek, I would do this in Zakopane, nowhere else. So, in my opinion the process of globalization has good and bad sides and for me it's hard to enounce on this topic.