I think everyone, myself included, who loved Berlin up till (roughly) 2012 is horrified by the sudden increase in rents that has occurred since the tech industry started moving to Berlin. In 2010 I stayed with a friend who was renting a beautiful 2 bedroom apartment in Neukoln for 550 euros a month. That was common back then. 8 years later, it is impossible to find that kind of rent. The city was much more pleasant before the tech industry showed up.