This is a very simple product. It's maps. And they're fairly well thought-out.
I don't notice any glaring issues, however, I should note that these maps are extremely retro-styled. I don't mind it, but if you're used to fancy pants stuff, this may not be your cup of tea.
The only gripe: .jpg's get more and more lossy the more you save 'em, and it's obvious on the colored world maps.
[4 of 5 Stars!]