Asa spared nothing and no one; he went so far as to remove Queen Maacah from her position because she had built a shockingly obscene memorial to the whore goddess Asherah. Asa tore it down and burned it up in the Kidron Valley.
Unfortunately, he didn't get rid of the local sex-and-religion shrines. But he was well-intentioned - his heart was in the right place, in tune with God.
All the gold and silver vessels and artifacts that he and his father had consecrated for holy use he installed in The Temple.
But through much of his reign there was war between Asa and Baasha king of Israel.