2 totally different workouts in my opinion...Low Max is an interval workout...I won't lie, the choreography is a little harder to learn (it took me a while..I'm a total klutz!) But once you learn it, it a a great low impact interval workout...No weight work in this video.
Low Impact Circuit is a workout that uses weight work in between the cardio and blast segments. It also has some great premixes (ie just cardio, just upper body, etc). I didn't find the choreography overly challenging..but I have been doing Cathe workouts for over a year now and have gotten used to her style. I do not think that the cardio blasts in LIC are nearly as difficult as the ones in LoMax.
I hope I have answered your question. I think it just depends on what your goals are at this point. Good luck and happy shopping.
Debra
Bite off more than you can chew. Then chew it---Ella Williams