Has everything you need for your stay. We used it as a more affordable base to explore London and it worked out great for that. It was clean, tidy and well equipped, parking outside with no issues.
It's about a 10 minute walk to Erith train station and from there you can get zone1 to 6 all day ticket for around 10 pounds to Cannon St station, the ticket will be good for all the tube stops as well.