I've never realized the anamorphosis/volume deformation tool. That seems handy.
I didn't go for DxO, but I did like some features. But, alas, I needed Photoshop Elements in addition to DxO for what I needed to do, which was a bummer. CC2018 is a perfect one-stop-shop for me today. I never really like the idea of subscription, but I decided that the total cost of CC compared those of DxO plus PSE or that of Phase One was not that much different, if include the cost of the periodical updates/upgrades of the latter software.