We loved staying in Marcin's space. The light from the south-facing wall of windows was wonderful both in the morning and in the evening! There was plenty of space for two of us. It seems like the apartment is a bit bigger than it appears in the photos. We had a hard time figuring out how to use the hob at first, but a quick search on Youtube solved that problem easily.
Part of the reason we picked this place was because of the easy access to the tube and the fact that we could take the Piccadilly line out to Heathrow in the wee hours to catch an early flight on Saturday or Sunday (night tube.) That worked out perfectly. The walk to the Turnham Green tube station was great and we felt safe even at 4:15 am. Taking the District line into the city most every day we were there was also very easy.
Chiswick itself was great too. There were plenty of places to eat or buy groceries on the busy High Street. We loved our walk along the Thames to the Hammersmith Bridge and also enjoyed Chiswick Gardens. We highly recommend this place!