I did the Madonna arms workout from fitnessmagazine.com for the second time yesterday. The workout is short and it incorporates different moves, so it is interesting to me. The only drawback I see is the last move in the series which is the 1 arm shrug.
The move feels awkward, unproductive and, in my opinion, opens up the chance for injury in the neck. I don't recommend it. All of the other moves are fine and DO work your arms in unique ways.
For my next arm workout, I'll be choosing another ~ so, stay tuned! If you have arm workouts that you LOVE, please share them with me in the comments.