What does Photoscape X do well? Most important part, photo editor, have a fantastic number of options and features. Work with all sort of layers and filters is instantaneous. Drawing arrows is done fantastically. Working with collages is a pleasure.
What does Photoscape X not do well? Some simple things are missing. For example user can't use BACKSPACE to go back in viewer/browser. More languages for user interface would be nice. Options for "Combine photos" are unsatisfaing.
What do you wish you had known about Photoscape X before using? I used before Photoscape v3.6, than v3.7. Now this is rally a quantum leap.
Have you used a competitor to Photoscape X? If so, how does it compare? Older version from same company. Also I'm using most of the time ZPS as it's much more user friendly.