You get all the benefits and penalties of the curse at first level, regardless of whether it advances or not, so you would get mage hand and ghost sound, but not anything else later on.
The wrecker curse abilities lend themselves to melee combat, surprisingly enough.
With Dark Tapestry, the Many Forms revelation allows you to Alter Self into something with natural weapons (like a troglodyte), so take Power Attack and Improved Sunder (put the 18 in strength and maybe with the human bonus, the 17 in Cha +1 at level 4), you can focus on sundering enemy items (particularly since you reduce hardness at 5th). This gives you the option to go in melee for short stints but still allows you to hang back and cast spells or use your other revelation(s).
So at 5th, for up to 5 minutes, you'll have a 22 strength (20 base +2 alter self), 3 attacks/sunders per round (claw/claw/bite), and reduce hardness of objects by 5 (meaning your strikes will do more damage to the object). At 4th, you'll only get 4 minutes and not reduce hardness, but the rest is still golden.
EDIT: Don't forget to add Make Whole and Mending to your spells known, so as not to annoy the rest of the party by trashing the potential treasure.