Personally, I like the car, especially the plasti-dipped front. Looks much better than stock, to me. AWD, 22" rims, new-ish tires, NAV, and cool exterior and interior color combo. At 67K miles for a 4 yr old, that is <17K miles/yr. Not terrible... Don't have your zipcode, but in mine (01752) kbb pegs it around $18-$19K in good enough shape. Question is if it has all you want, and priced right for your budget... A bit of TLC and you should have a pretty nice MKX...
Good luck.