Setting the Advantage - what does it change?

[LordDeadwood]

That just shows you how many are missing out.  It is much more of a challenge, not to mention fun, to play against somebody that has the ability to change their mind at any time.

As someone who just discovered JT games a few months ago, and has played other games as well solo for a long time, I can concur with the above sentiment. I just started doing PBEM recently and (aside from getting my butt kicked!) am enjoying it immensely. I never realized how bad the AI was (in games in general) until a recent game of PzB Normandy. The AI allowed a regimental HQ unit to just sit in open terrain within range of an infantry company for multiple turns while I just whittled it away. And it wasn't because I found it there, it was moved there! Another case in the same scenario found a divisional HQ accompanying line troops moving toward the beaches. As in stacked with and adjacent to infantry and armor!

The AI is perfectly fine to learn the basics of the system and to get your feet wet. But after that, human players are a must if you want to really learn the game.