I was not messing with anyone, honest.
B|Java can chime in too. With a regular press you can blast the screen with a good stream of water, and you're good to go. With the Espro the 'screen' is a two part array with a somewhat standard screen with a secondary screen shaped like a basket. One is normal mesh and the other is very fine, hence the cleaner cup. But to clean it, you have to unscrew the two-part gizmo and get in there with your fingers or a brush/rag; the finer screens seem to hold more sediment and don't simply rinse clean.
I'd say the extra cleaning is commensurate with the improvement in the cup, especially if you deem a cleaner cup and less sludge important.
If I found a great deal on a medium, I'd buy it and use it. I bought into the kickstarter deal on a large, but found I didn't use it often enough to warrant tying up $100, since when I need more than one mug I'll use my Yama or Chemex.