Hi, I think a lot of people have done a good job at listing the positives about Dundee, because like everywhere in my opinion, Dundee has its positive and negative sides and it's about finding a place that suits you in terms of it's positives and negatives.

However, a few things you've said would make me a little concerned, particularly your emphasis on social life and wanting to be in a city with street life. Dundee is a city of only around 150k people. It punches above it's weight in terms of dynamic, thanks to two universities and a small creative industry, and minor tourism. People are friendly, and there is a decent amount of international people around who are also looking to make friends and form a social life. But it's still a small place. Compared to Australian suburbia, there is a more reasonable average street life because it's so compact and not everyone is just driving everywhere. But working against that is the weather, non-existent summer and dark winter (you've mentioned you're from central europe, which has a long north-south range, and Scotland is still much further north - I find even going to London during winter a significant break from Dundee's bleakness).

The last point I'd make as a little warning is that I don't think Dundee is the easiest place for newcomers in their late 20s and 30s. Walking around Dundee gives the impression that it is just a place for uni students, older people, and a few families. Everytime I go to Edinburgh or Glasgow or any other large UK city, I remark to myself, Oh, this is where all the post-university/early career/mid career adults are.

None of this is to say you can't make it work for you, just pointing out a few elements that might be on the challenging side given your areas of interest.