Krone truly is an amazing location to stay in. You're in a great spot close to the tram and the train station is just an 11min walk away - the train ride from the airport is about 13mins, which was very convenient. I met with a friend from Switzerland and he even said Krone was in a great location..
I was solo travelling and I will say the room I was in was small, like very small. However, that wasn't a bother for me as I'm a bit of a minimalist and I was really only in there to sleep. I did see other rooms though and they were much bigger so if you're a couple there are bigger options.
There was no desk in my room to work from, however there is a commons room where I was able to set up my computer and get to work. There is plenty of seating in there too, so whether you're working or eating it isn't an issue. Also in the commons is a shared coffee machine, microwave & fridge. Which was nice because I could store my take away down there and heat it up for later. :)
They also have a nice bar that overlooks the main street/water which was lovely to sit in there and edit too. The bar is also open to the public and I believe is open until 23.00 on weekends.
If you want to be in the heart of Zurich definitely stay here, I had no problem navigating and would recommend solo travellers & couples stay here. :)