I can't remember much that was wrong with RTW, except the cartoonishness of the units and the poor AI. M2TW brought in some nice little refinements like multiple unit training, so we will have to see what R2 will be like. I just hope it won't be full of bugs on release like ETW was. And I also hope that R2 has plenty of modding options, judging by CA's recent comments, they appear to be swinging in the pro-mod direction, rather than cutting it all out just so they can flog DLC, they seem to think that the two can happily co-exist, which is a plus.