I'd love to see those reviews.
The eIPS is just a cheaper to produce version of IPS,
here is a general outline of the differences.
From what I have seen, I have a 2209WA (eIPS) at home, a Dell 2709W (S-PVA) at uni, and some of my friends use TN. I find that the eIPS shows colours much better than the TNs plus the viewing angles are a massive part.
Here is a comparison between that dell and a popular TN (use the drop-down menu to change the test).