I also have great workouts after a cheat day. The thing is, it only works (for me) once a week. If I try to do it twice a week, it boomerangs on me and I feel like crap.
Don't be discouraged: incorporate it into your weekly schedule in a way that makes it work for you. I do all my cheating on Fridays, because then I can give it all I've got during my Saturday morning boot-camp.