It can be stressful, since the workload is higher than I expected, although this doesn't bother me too much since I love my subject and I love reading around it, but the stress is still there, especially when you're frustrated with an essay or exam or something.
But yeah, I don't know whether my life got better, but I would say I have learnt a lot about myself, and others, and gained a fresh perspective on life. I have met people from all over the world and got to learn about their cultures/experiences, I have definitely gained confidence and socialized more than I did at school, and I have took advantage of a few really good opportunities. In that sense my life has got better I guess, since I've developed more as an individual.
It depends what you expect from uni I think. If you come with the attitude of wanting a fresh start and to re-invent yourself or whatever, but then struggle to do so then I think that can put a downer on a few people. If you expect uni to just be a tool for gaining opportunities/study a subject you love then I think it is easier to enjoy the university experience.