It's such a beautiful city, and there is so much to see, but being there for 3 days was the perfect length as I felt like I saw all that I really wanted to and didn't miss out on too much.
Obviously Christmas markets were top of the agenda, but we also managed to do a bit of shopping along Mariahilfer Strasse (and checked out all the shops that you struggle to find in the UK) and a bit of culture (in the form of the imperial apartments and Sissi Museum in the Hofburg). I also ended up flying out with a few family members as we have some family friends out there that we also wanted to visit which meant that I got to spend some much needed time with everyone.
Staying in the 5th district, we were a 10 minute walk from the underground station Kettenbrückengasse and one thing that's definitely worth mentioning is just how easy it is to navigate, the underground is so simple which definitely made the trip more enjoyable as we didn't get lost and could get about so quickly! We were also so close to Naschmarkt which is a big food market with so many different stalls and restaurants which was a definite highlight!
I would definitely recommend visiting Vienna, it's one of my favourite cities in Europe that I've visited, and I am so tempted to try and go back in the Summer...