In January, 2011 I posted in reply to a question about Pro-Max 400 film, sold by Ultrafine as an Agfa film. Since then I have done some testing and report the results here.
••Pro-Max 400 is, in my tests, really a 200 speed film at best; 160 worked well for me. The results are as described in the January 2011 post.
••In the earlier thread I had not yet used Pro-Max 100, also sold by Ultrafine as an Agfa film. I recently finished a couple of rolls in different cameras at different times. Here are some examples:
--The first two come from the backwaters of the Minnesota River just before it joins the Mississippi at Fort Snelling. Flooding in recent years has left about half the area of this particular backwater filled with sand.

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The third photo was taken in the wooded banks above the St. Croix River at St. Croix Wild River Park.

To provide a little comparison, here is a recent photo using Agfa's APX 100 straight from the box. The subject is the western portion of the Stores Building at Fort Snelling.

(Pro-Max 100 was developed in D76 1:1 for 10.5 minutes. APX 100 was developed in D76 1:1 for 9.5 minutes. Both films were rated at box speed. Photos 1, 2, & 4 were made with Nikon F3; Photo 3 was made with Pentax ME.)
It seems to me that Pro-Max 100 lacks a little of the punch that APX 100 has. Still, I like how it works as a cheap medium-speed film with pleasing tones. Up to a week ago, when I last checked Ultrafine, Pro-Max 100 was still available; Pro-Max 400 was out of stock. (I have no connection with Ultrafine, Photo Warehouse, or Lauder Photo which packages the Pro-Max line.)