This is an extremely nice place to stay at - for both the house and location. Everything is spacious, the casual lounging and eating space in the kitchen area and a more formal dining and living area. The out door areas are fantastic with a tranquil and sheltered back courtyard that gets great sun or the porch at the front looking directly at the harbour.
It comes with good wifi and skysport/mysky so you can record those late night games. The kitchen is great so you can cook if you want to or walk five minutes to the local eats.
The beds are very comfortable and there is lots of heating - we needed it as we came during a cold period.
Devonport has a lovely quiet feel to it but if you want the city, the boat ride is quick and cheap. I choose this place because I couldn't find a place that suited in the city. Now I'd look here first.