The location of this apartment can't be beaten - it's extemely central and very easy to get anywhere in London. Lots around to see/do/eat.
Be aware that the key is located a fair walk from the apartment as it mentions, and the stairs are quite steep - this didn't bother me much but is worth noting. Other reviews mentioned the noise - the windows are double glazed, which blocks 70-80% of the noise, so I found it fine - but yes it can get a little noisy being right in the middle of Soho; it's to be expected!
The apartment is simple yet functional and spacious enough for two people, and the bed is comfortable. Handy to have a washer/dryer although would be nice if the host provided some laundry powder to go with it (I left almost a full packet for the next guest as I certainly didn't need to buy a whole box but had no choice!). Despite a few minor inconveniences during my reasonably long stay, I thoroughly enjoyed my time at Zara and Robert's place and would recommend it to stay again.