Anna’s apartment is about 10 minutes walk from the bus station and about 15/20 minutes from the old town square so good location wise! We didn’t end up using any public transport but you might want to investigate if you’ve walked across the river to the castle as it’s quite a long walk back!
The apartment was clean and tidy, and the amenities provided were suitable for our stay.
We didn’t meet Anna but her husband was really helpful at checkin and with explaining the booklet they provide which has really useful info!
Overall a lovely stay in Prague!