Hi Andy,
I purchased Straton a few months back, having used it on several star-heavy targets such as the Carina complex with very good results. I've attached some example images for you to have a look at. The authors main selling point appears to be the claim that it delivers better results than JP Metsavainio's "Gold Standard" tone-mapping method.
My only issue with it is the lack of multi-processor support, so working on large images or very dense star fields can be slow going. The example image shown here took approximately 18 minutes of processing time on my 4-core Intel laptop.
Although the end results are more or less the same as what you would expect from JP's tone-mapping method, it's certainly a lot quicker than doing it manually. I also found that the options which allow you to fine-tune the amount of star removal work very well.
15 Euro well spent, IMHO.
