It was probably the last Boxercise circuit class today for this year (It is a work gym and I’m off work for Christmas shortly). People are certainly dropping out for the usual seasonal reasons: Only three people were there!
Anything which encourages movement as well as a work-out is definitely what I am after. It’s also semi-interval training-esque (60 seconds of work-out, then 10-15 seconds rest as you change partner, repeat!)
And this seems a great link for more information on the whole Tabata thing: