Seat Upgrades: Anyone finally make some headway on this?

[Kasbien]

So it's been a number of years now since seat upgrades were talked about. Anyone landed on one that they really like? Aside from the VW Golf or Scion xB seats?

I just finished trying '07 RS hatchback seats in my '07 sedan and while I appreciated the mild improvements, it wasn't quite worth it. Mostly because the slightly more elevated hatchback seat made my head touch the headliner unless severely reclined. The other reason was that I didn't find them nearly as comfortable as when I swapped Echo RS seats into my girlfriend's '04 Echo. THAT swap was a night and day difference. Oh and the bolstering didn't like the presence of the centre console.

Anyways, would 2012+ Yaris seats fit in an 06-11 Yaris? Are they any better? Anyone gone fully custom with seat rails and a racing seat?