I absolutely agree the individual realtor impacts the experience, that's pretty much the crux of my whole issue :) My conclusion was that Redfin doesn't offer as much control/guarantee to ensure this, and in a hot market, this matters quite a bit.
(To be fair, I'd say the same thing about my experience with mortgage lenders, BoA did an abysmal job and very nearly left me in the lurch, whereas a smaller local lender picked up the slack and pulled our asses out of the fire. Perhaps my overarching statement should be to wonder if we (businesses) suck at scaling customer support? (I'm pretty much saying "well duh" to myself as I write this statement, frankly))