Clara's place is very well located near to all most wanted see attraction, the house is perfect cleaned, and tasty and healthy breakfast provided :-) I wish could have spent more time there :-). Nothing to falt!
The apartment is in the 3rd floor so keep in mind you'll need to carry the luggage up there.
About distance, we went from the bus station walking and also walked back to the train station it was around 30 min pushing a 23kg luggage ... So no need to really pay for any expensive tax or water bus if you are happy to walk a bit.
I highly recommend this place to any one, family or singles.