I’ve been building this for months — can you tell me what’s wrong with the UX?

I’ve been working on a side project called Klartval. It’s a decision-support tool for people considering buying a home. The current beta is built specifically for Finland, so the financial assumptions themselves won’t necessarily be relevant outside Finland. What I’m mainly looking for here is feedback on the product experience: Does the purpose of the product become clear quickly? Is it obvious where to start? Does the analysis flow make sense? Is the result understandable? What feels