This can be a viable option in any deck that takes advantage of a number of Connections, though to really make it count, you need at least three of them installed - otherwise, Easy Mark is the card you want. It's a contextual thing - probably won't be much of use against an agressive, resource-trashing Corp deck (now that we have The All-Seeing I, the risk is even worse).

The Criminal faction currently has a number of cheap and disposable Connections you can utilize in your deck to make this card usable.

Consider if you are a fan of Iain Stirling: Retired Spook, as he is probably best when paired with a bunch of Film Critics, Fall Guys, Drug Dealers and perhaps a Data Dealer, maybe Street Peddler or two...

You gain 5. The Runner gains 3, an equivalent of him spending most of his turn clicking for cash. If you explain this card in such way, it doesn't make it sound like too much of a great deal, does it? Unless you are running a tricks-and-traps-oriented Jinteki deck, as Absolium mentioned above me. But then...

...it has a pretty cool combination with High-Risk Investment, especially if you were about to splash it in Titan Transnational: Investing In Your Future deck. In one turn alone, it is possible to gain 11, and that considering your opponent was completely broke by the time you did it.

Might also be worth considering in any Corp deck using Closed Accounts, if you want to screw around with the other player a bit. The Corp giveth, The Corp taketh away...