A new patch for PES 2014 has been released to significantly improve download speeds for the game's DLC.
Furthermore, there are reports which suggest Patch 1.02 has also implemented a number of gameplay fixes.
In other news, Xbox 360 users are still unable to play online matches because Data Pack 1 remains broken. While both Konami and Microsoft continue to look for a fix, fans can stay up to date with the situation here.
Alternatively, affected users are encouraged to try the community fix to implement DP1 via USB. It didn't work for me (after multiple attempts), but it's worked for others, so it's probably worth giving it a go.