I got a Polytope used some time ago. It is by far the best chorus I ever had, regarding the exhaustive beauty of the sound as well as the perfect controls for us bass players.
I replaced my Polytope with the Anadime Bass Chorus for a period of time, I really love the tone of the ABC but what sets the Polytope apart from other chorus effects is the ability to turn the LFO off for beautiful sustained chorus notes which I prefer.