I've been a long term DisplayFusion user for many years now. It has solved problems for me, worked around windows issues, and provided excellent backdrop randomization. I'm an amateur sports photographer and use my own images. I just switched to a 4k 4k 4k monitor setup and although I still have issues with the way Windows handles high dpi and multiple monitors, DisplayFusion has been great for setting up customizations. I'm thoroughly spoiled with my mouse wheel right/left actions tossing windows to another screen. I've run betas often and found DisplayFusion to be rock solid in comparison to almost any other app. Not that it hasn't crashed once in a while, but never consistently. As a software developer myself, I rather love the constant feature creep making such a rich product.
All of that said, I really respect the eternal license model and can't stand when companies shift from eternal. Textpad as an example recently did this and I didn't pay up. DisplayFusion is my most depended-upon piece of software and I thought I'd do the reverse, so I've purchased a second Pro Personal license even though I don't have to. Have a beer on me.
-- Sean M.