Sandboxie/Buffer Zone Pro

[shankle]

I have been using Sandboxie for years (the free version).
I don't like to do this as the author has to make some money.
But he won't accept a yearly donation. His price for a lifetime
license is absurd. Now he has changed it to a renewal license
which is even more absurd than the lifetime license.
I could still continue to use the free version but what about
Buffer Zone Pro? Has anyone used it here? Please give me your
impressions of the software.