This card is cheap and easy, but does need to be used with skill and caution. With her ability to recharge supports and use them as grenades, Maria Hill doesn't want to just burn through all her support cards. Not to mention using cheaper support cards like Surveillance Team for Caught Off Guard fodder, you don't want to over do yourself and only be left with vital supports and upgrades on the table.
With that said, this is an exceptional card to have high production turns for any aspect you play Maria Hill in. With her ability to mix Supports from other aspects, you can see some big board state swings with her being able to Heal, Thwart, and deal damage with whichever is highly needed at the time