I really like this card, although it really isn't for every deck.
This card plays well in decks that run about 1/3rd of their deck as asset cards and plays best with a mix of semi-permanent cards (like the machete) next to cards that are designed to get used (lantern/beat cop/knife).
It also alleviates the classic problem of the core set talents, in that it almost entirely negates the tempo hit for playing them out.
Its also good in investigators with draw (Mark).
It has synergy with Laboratory Assistant (play it first, draw two cards. Then play a few other cards).
Late game this card can be pitched to an investigate or parley test.
Really, my only problem with this card is that Guardian builds right now do not have all that many assets that are "expendable". Most guardian builds are expensive and use minimal actions to set up a weapon, an ally and maybe some other asset to help. In this classic build, you are pressed for time for anything else. Ever Vigilant gets you additional gear when you have those spare turns with an action but no idea what to play.
Watch this space. This card will certainly become more useful as guardians (and other classes) continue to gain new assets.