I tuned mine this way for listening to classical music and it has made them come alive. Absolutely spectacular.
The difference eq makes for gaming is sensational. I hopped into a game of Battlefield 3, applied the above eq and just listened for a moment in awe of the immersion they created. imaging could be better, especially depth (there is none really to speak of), however what can you expect given the crazy low price!
I think they may even better better than my TIN T2 (at 5 times the price) and better in some respects (soundstage and gaming immersion) than my Audio Technica A900!
edit: I also purchased '12 Pair (24 pieces) Foam Earpad Replacement Sponge Covers for Earbuds/Earplugs/Earphone (Grey) ' for them which helped their comfort!