I have
My furniture making teacher is sponsored by Festool, and he has one, it's a dream. I have the CL33 extracor but have not forked out the reddies for the arm - I have a various pieces of bungie tied around the beams in the workshop (at each place I'm likely to use the extrator). The hose ( a 5 meter one) then has a hook I attach to the bungy. Certainly not as good but does the job.
But like all Festool things they just work so well and have thought of all options. You get what you pay for in this world, just wish I had more disposanble income to add to my Festool collection