I upgraded my 27" 1440p LCD to a 27" 4k OLED (PG27UCDM) and for me text rendering was a big upgrade.
Yes there is color fringing if I take a zoomed in picture with my camera, but nothing I notice in day to day use. And I've been highly annoyed by missing or bad ClearType rendering.
I specifically went for the 27" to get the extra pixel density though. I might not have been happy with the 32" variant.
That said, the true blacks and bright whites is something else. For me a very significant upgrade both on the desktop and in games, despite the previous being an upper-level LCD when I bought it 4-5 years ago.
I just ordered this monitor earlier this week (still waiting for it to be delivered), did you need to tweak it or use some thing like MacType like others are suggesting in this thread?
Yeah I'm quite excited to move to the 34" ultra-wide 1440p RGB stripe 360hz monitor they announced! OLED is an amazing technology, and this was IMO the final barrier to overcome to beat IPS on nearly all axes.