When you click 'places' the 'cancel' button to close the popup doesn't work for me (Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:16.0) Gecko/20100101 Firefox/16.0 ID:20121010235235)
I added a place with a 20 minute radius, then realised I wanted to go back and make it a 30 minute radius. It wasn't obvious how to do that with the UI, I ended up adding another place by mistake.
When I have two places, if I choose place 1, adjust the time radius slider, then I choose place 2 I get a new popup and my previous settings change is discarded. Could the changes auto-save, like when you drag and drop the place marker?
I'd also suggest, after I've picked a price range, instead of the "Property listings will appear here - click anywhere in the orange areas to see what's available in that area." bit why not auto-click somewhere suitable, removing a step from the UI process?
Also, if I could have a house cost heatmap with and without travelcard costs, that would be awesome. At the moment it's easy to visualise travel distances, but a heatmap would let me visualise the travel distance-house cost trade off.
What's your source of train time data? Are transfer times taken into account?