The E2e is a nice light. Just make sure you try it out before you buy to make sure it has the newer, clickie style tailcap.

Note there really aren't many different E2 lights. The main differences are 1) finish and 2) hex or round head.

The main finishes are silver satin and "natural" HA III. The HA (hard anodize) is a stronger finish and looks sort of green-brown.

The purpose of the hex head is so it doesn't roll if you set it down.

In general, the satin/round lights are not nearly as common (I actually thought they discountinued them, but SF put them back on their web site).

Almost everyone perfers the hex head with the HA finish.

-john