Downside is you can hear relly well how dated the recording technology was, but it doesn't matter, because it's music history. It changed everything. And they did it with equipment that actually cutting-edge even for the time.
Eerie discovery of the remaster: At the end of 'Day in the Life', when the closing chord finally fades out, you can hear what sounds like someone getting out of a slightly squeaky chair, walking across the room, and going out a door. Wow.