Interesting review IMO, with colour accuracy comparison and benchmarks of DeckHD vs. original screen (and other “known good” screens).
I would be more tempted by an OLED screen upgrade, but colour accuracy looks pretty good tbh. Pricing is in line with an official (matte) screen replacement from ifixit - $99 USD.
I look at my Deck huge black bezels and daydream about the day they bring a 8-8.5 oled screen with no bezels.