@Ann72
I noticed that you could narrow the results down by number of bedrooms/bathrooms.
That indicates to me that the comparisons are not taking into account the type of listing, so the prices especially are going to mean very little to me. There is no point comparing the price of a private bedroom in a shared house with a one bedroom flat rented as an entire unit, especially not in London.
And what do I put for number of bathrooms, when each of my private rooms has access to 3.5 shared bathrooms, but none have private bathrooms? I could select three, but then that's like saying the one bedroom has three bathrooms, or I could select none, as there is no private bathroom.
If you don't narrow it down to number of bedrooms, then your three bedroom unit might be compared to a load of private room listings as well as larger units, so the price comparisons mean even less.
Until you can compare like for like, e.g. for me only private rooms with no private bathroom, this tool can't possibly show me what prices I should be charging.
Sorry to be a downer about it because it looked good at first glance, but it's just too vague to be useful.