I bought a house in Seattle 2 years ago through Redfin, and had a GREAT experience. We had started with a more traditional realtor first, but the Redfin one was way more responsive. Maybe it's realtor-specific.
Same, bought a place in Seattle through Redfin towards the end of 2014. Went from attending a free Redfin homebuying class to getting the keys to our new place in 30 days. Loved the website and the experience and didn't feel pressured.