The install ability is great when the corp has only expensive cards rezzed, but is effectively useless against an opponent who has any cheap/free cards rezzed. It's actually worse than useless if they have Adonis/Eve/Launch Campaign rezzed, since you'll just be refilling their counters. (Oh, hello, Foodcoats!)

The trash ability is nice when when the corp has no cards unrezzed, or when you're sure that every one of their unrezzed cards are cheap. And if the install ability is ineffective, it's just as efficient to just click to draw for anyone but Geist. The only advantage you get is that you get to draw later instead of now, which might be useful if you need that one last card for Faust or if you're holding three cards and feel a Scorched Earth coming.

But now if you get a tag, the Corp can install any card (say, Archer) then trash your gang member to rez their card for a total cost of 2.

It's a situational card, but the situations where it's even marginally useful are pretty rare in my experience.

This card is extremely useful to Adam and Apex.

Adam has built-in "break any subroutine" feature with Always Be Running. With E3, now you can break every other subroutine on that piece of ice as well, meaning you could break Orion for 2 clicks and 2 . (Sadly, you can't use Multithreader credits for this though.)

Similarly, if a piece of ICE has an end the run subroutine, Apex can use his Endless Hunger with E3 to break through every other subroutine as well without having to burn through as many installed cards.

This card combos really nicely with the new Jinteki ID Chronos Protocol: Selective Mind-mapping. Score a net damage (with a Neural EMP perhaps) and kill their best card. Then play Targeted Marketing and name one of the other cards in their hand.

Need to dump this card before you can get any net damage off? Just name Account Siphon (or whatever other card would mess up your plans the worst).

The free install means that this card plays very nicely with any asset that requires/benefits from 3 clicks to use:

Melange Mining Corp. or GRNDL Refinery if you're low on credits

Reversed Accounts if the runner has too many credits for your tastes

vjhorse90 mentioned in the comments for another review that Eliza's Toybox works great with this card

Contract Killer: Murder that advanced Kati Jones or The Supplier out of the blue