We did it. House built in 1993 and redone in 2006. Owners from 2006-2009 destroyed the interior but exterior was fine.
Spent $130,000 fixing a home we paid $540,000 for. appraised for $725,000 before we were done fixing it up.
Husband thought it would appraise for 10% more if we just took out the dirty carpet and painted. It probably would have but I insisted on replacing absolutely everything I would touch because I was grossed out.