Positive points:
You are central and are within walking distance to Kensington High St, Hammersmith, Shepherds Bush, Notting Hill Gate and North End Road. You are basically right by "Holland Park" one of the most beautiful parks in London, and a walk from "Hyde Park - Kensington Gardens".
Shopping is perfect! There is everything - you are a walk from Portobello market, Shepherds Bush market and North End Road market. You have the better shopping and fashion in Kensington High Street, and a choice of many large supermarkets.
I like this area, as you can basically walk anywhere and feel like you are in a totally different place. Brook Green is also a fabulous little area that is growing fast, with lots of trendy little pubs and resturants in this hidden little community.
Negative points:
Traffic - it seems being at such an intersection means you have traffic. Holland Road is partiulcary bad, and the traffic on Kensington High St is becoming more and more congested.
Hotels -W14 seems to be scattered with B&B's , hostels and little hotels. The class of these small buisnesses seems to have improved a lot in the last 10 years, but there is still the odd few that seem to be noisy, unsafe and eyesores - though many have made inprovements and I do hope will continue to. This means you have travellers and students - mostly nice Spanish and Italian young people.
W14 is a bit of a mish - mash. But an interesting and I feel safe place to live in - that grows on you.