Well, since the price tag is about 8 times higher than the 210 f4 I would hope it performs better. I think I would love to have one of these, but so far the money has not been available. It's a big lens with either a 75mm or 105mm front thread, and heavy because of the larger better glass. If you aren't sure about the focal length, I would suggest picking up a 210mm and giving it a try, just keep in mind the minimum focusing distance of the 210, the 200APO has a closer distance by a little bit. If money was no object, I would probably own one of these APO lenses (actually I would probably own the entire set).
I've done a bit of work with the 210 f4 and it produces what I would call are excellent results with the angle of view that I prefer.