The unadvertised limitations really disappointed me.

I was most excited about creating *.exe files from my *.pl files, so I tore into the PL2EXE module.

Turns out that PL2EXE does not compile Perl code. It apparantly wraps the code in a *.exe wrapper (or *.bat if you prefer).

I was going to try anyway, and view the binary file, to see whether anybody could simply read my code in it.
But, PL2EXE only works on Windows NT (not 95/98), so it greatly limits its usefulness in my situation.
I didn't learn this until I got the kit and started reading the files on the CD-ROM.

Also unadvertised was the limitation that Perl code converted to *.exe files can not utilize pipes to interact with other Perl programs, for example.
This cripples its usefulness to me, unless I want to restructure my entire application.

It seems that with most of the components in this kit, there are significant limitations, but that's just from reading the readme's and doco on those.

The strength of the package is having the module software and documentation handy (as opposed to downloading from the net and dealing with whatever hurdles that entails).
I have not tried the visual debugger or other modules.