While I may not be ready for 5 inch inseams like Shammy, I too at 43 am seeing way better results with DB than anything I've used in the past 3 years (gained dreaded 10 lbs between turning 40 & repeated ivf's).
I have been doing them about 3 - 5 days a week (all except for toning & tabata i've yet to try that!) for the past 6 weeks and have definitely seen improvements all over my body (waist, arms, legs, butt). I even decied to pull out BTM last night and did not struggle with it the way I usually do!! I still prefer DB to toniques as I just can't tolerate the endless reps