My review - Program is excellent and worth the purchase.
I can't say that I paid $25 for it when I bought it a few years back as it does seem rather high but I can say that this program is an excellent application that gives you what the competitive offerings cannot - an exact replica of the Windows start menu / toolbar / system tray / clock on your other monitor(s).
The start button is Microsoft's what with the same pinned items, the system tray is the same, the clock is the same, the taskbar is slightly different when you right click but it allows you to pin different applications to this bar, so your primary bar will have its pinned items while the displayfusion taskbar will have its own pinned items.
A few years back, I tried Multimonitor (Oscar's) free toolbar, Ultramon and a host of others, none of them could compare to what DisplayFusion could do at the time... fast forward a few years and the authors have added piles of little abilities that I used other third party utilities for, like 'pin to always on top', 'span monitors', 'switch to other monitor', hotkey support for additional functions you can't do with windows.
I was hestitent to try this a few years back and they would have had my money sooner if they didn't force you to register to demo it. That definitely held me back as I want to demo products, not sign up for spam; however I was glad I did as this app has been indispensible.
Since there's a pile of negative comments in the list of discussions I may come across as a shill but I have nothing to do with this company - I'm just an extremely satisfied long term registered user.
If anyone has any functionality questions, feel free to ask and I'll try to answer them to the best of my ability (which is decent as I'm fairly tech savvy).