Yes that is a good deal. But see this thread on Agfa Apx and Rollei Retro.
http://www.rangefinderforum.com/forums/showthread.php?t=62555
Arista, Freestyle's brand is not confirmed to be the old Agfa APX whereas Rollei retro is. Arista MAY be from the same mother rolls, or it may be a re-formulation. From all I have read it IS processed just as if it were Agfa or Rollei. Probably a minor point, especially if you have used Arista and like it. I have not, so I am deducing from the thread above. I have not compared it to Agfa APX 400.