Ok, I'm not lumping your site into the "big horrible mess" which many sites are migrating to these days. It's just a trend of over-simplification, unintuitive user interfaces, devoid of color and other subtle visual clues to give context, and too much clicking and scrolling required. I'll just give you one very common example of this 'devoid of context' trend, which you claim is an improvement: "Non Buttons."
On your 'filters' page, there's no user feedback or indication that the "Apply Price" (or "Apply Mileage") button does anything, or actually did anything. It's just a grey button. It's always grey. If you change the price ranges, it's still grey. If you click it, it's still grey. If you click and hold, it's still grey. It looks like it's a disabled button, or the UI is just broken. It's always grey and provides no clues to the user that that button is activated to do anything, or actually did anything (accept the user input, filter the results, etc) when clicked. Yup, I guess that's a better user interface, folks!
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