I have the menu too, on my P&G GTR2. It does give it a nice retro feel, and also differentiates it from the normal GTR2.
You need to make sure you only use it for a bespoke P&G install though, cos there are menu items in the standard game that aren't available in this menu mod.
Also... It makes a bit of a mess of your GTR2 dir.
I think some of the graphics are a bit shoddy too (not in a good way!), and some of the text from the menus bleeds over the edges of the layout. On the whole, it looks nice, but it could look a whole lot better.