I expected that I would enjoy staying at this apartment, but it was actually even better than anticipated. Much attention to detail went into making this accommodation very comfortable and inviting for the guest to a degree that is rarely encountered. There were fresh flowers or a plant in every room. The refrigerator was stocked with an impressive amount of drinks and snacks. Bathroom toiletries exceeded in amount and usefulness what you'll find in the best hotel. Kitchen was well equipped with more gadgets and cooking gear than I was able to use. The bed was very comfortable, and I had my choice of a lighter or heavier duvet (as it was the change of season). There was lots of empty closet and drawer space making it possible to set up comfortably and not have to live out of a suitcase. The living room had a comfy leather sofa and some interesting Beatles and London transport memorabilia. Everything important worked well - internet never failed, abundant hot water, comfortable heating for the cold days.
The reason this apartment works so well is that Barry, the owner, takes great care to see that everything is done right and is under control. You won't have any unpleasant surprises, because everything is looked after carefully. Barry spent a considerable amount of unrushed time with me explaining carefully all I needed to know room by room. He set up the washing machine and the heating at appropriate levels (that turned out to be perfect), and all I had to do was push a button to use them rather than struggle reading manuals to figure out what to do. He gave good advice on food shopping and getting around the city. He even briefed me on what to do in the event of a fire or other emergency, who to call, what to say etc. Several pieces of fire prevention and first aid equipment were set up in the apartment. These emergency precautions are important, and you don't find them often enough.
The Covent Garden location is lively, attractive and close to much that a visitor will want to see and do. I felt safe walking there alone day and night.
This apartment is heavily booked, and you may need to book far in advance or be flexible with your dates. It's worth it. This place would be great for a couple, and it was glorious for this solo traveler used to tiny single rooms that probably cost about the same. Don't hesitate.