I have been considering this software for a while since I downloaded the trial version in the summer. Its now on offer for £119 instead of £159. I hope this helps some of you out.
https://shop.dxo.com/us/photo-software/dxo-opticspro?CountryShow=International
https://shop.dxo.com/us/photo-software/dxo-opticspro?CountryShow=International