We had an enjoyable stay at Xenia's.
We walked to and from the tube and used public transportation during our stay. It is about a 10-15 minute walk to the bus and underground, hop on, hop off bus, etc.
Everything we needed was in the apt. It was clean, fresh towels were provided, and the WiFi worked great but we didn't watch any TV, so can't say anything about that.
We were comfortable walking around at night, too, back from our daily activities.
The view from the apt is fantastic, maybe that's why we didn't watch any TV.