Ex-SD,
I have a fast connection, 6mb DSL. I do like Redfin’s website, but tend to use ZipRealty and SDLookup a little more. Where I found Redfin slow was when I’m mapping a large area, for example an entire zip code, and also select a year or more of past sales. When you zoom in and out from there, it can be very slow. However, I tried it tonight the way I usually do and it was significantly faster. Maybe they upgraded their systems recently? In any case, their map view is incredibly useful to get a quick grahpical overview of recent comps (up to 2 years) and current listings. I still have to go to multiple sites to get everything I want, but each of them seem to be constantly improving as they are in a fierce battle to one-up eachother. Great news for us consumers….