I never planned to move to Austria, but my summary of pros and cons
Pros:
Very safe. Even areas of Vienna regarded as "dodgy" pale into insignificance when compared with pretty much any rough area in UK cities.
Clean. There is very little litter, graffiti etc
Well maintained. Public ameneties work, green areas are well kept, water dispensers throughout the city function, damaged pavements etc are repaired
Cheap rent. For a capital city, rent here is low. I pay £870 pcm for a brand new, 700sqft 2 bedroom apartment with balcony 10 minutes from the centre by public transport. If I had been patient and waited for a co-op scheme I could have reduced that to about £600. My wife was paying £380 pcm for a 400 sqft studio flat with balcony through a co-op scheme before we moved in together.
Public Transport. 365 Euros per year for all train/tram/bus/underground travel within Vienna city limits. 1100 Euros for annual ticket covering the whole of Austria.
Good Labour Laws. Employees and companies are well protected and each job has its own minimum wage which is agreed between works councils and employers collaboratively. It is illegal to advertise a job without stating the minimum salary.
Childcare. If you want to raise a family in Vienna, childcare is free up to the age of 6 (I think it's 6, 5 or 6 anyway)
Cons:
Tax. The tax rates here are higher, and the bands are harsher - so a lot of what would be 20% rate in the UK is taxed at 35% here.
Market. Online shopping isn't brilliant; Ebay isn't really a thing; heavy focus on bricks & mortar but low competition means poor selection and high prices; Austria actively blocks SMEs outside Austria from shipping into the country, dressed up as "green" packaging regulations
People. The Viennese are not the friendliest, there is a passive aggressive "if you don't like it, bad luck" attitude to many daily interactions. Bleeds into every service interaction, particularly with any public sector stuff.
Bureaucracy. Everything has to be done in person, digital services severely lacking, multiple rubber stamping and authorisations required for even trivial administrative matters.
Costs. It's an expensive country in general. Groceries are expensive, consumer durables are expensive, second hand items of any nature are expensive, motoring is very expensive
Language. You really do need to be able to speak and understand German to survive here, even if you keep to expat circles socially.
There's other stuff but that's a high level summary.