It seems that erasable gel pens are the new flavor of the month. Like the Pilot FriXion, the Pilot e-Gel is an erasable gel ink pen, and also like the FriXion, I'm just not crazy about it. I think most of the problem lies in the pale shade of ink that is required of these type of pens. The needle tip performs ok, and the pen is lightweight and balanced, but I just know I will lose the small screw off cap where the eraser is. At least the eraser is in the right location, unlike the FriXion, and it is a normal pencil eraser at that, not a friction based rubber knob.
The performance of the eraser is rather poor, and the FriXion is probably better in that regard. Between these two pens and an upcoming review of a Uni-Ball Signo erasable that I ordered, I will do a side by side comparison and eraser test of all three to see which is the best.