Do not buy it! Absolutely not!

Note that I'm not at my first PES ...
I received this 2015 edition the day of its release. But since its installation, can not perform the updates promised and impossible to play any online dating.
These problems, many of those who play regularly online on other securities, like me, meet, just go for a ride on the Steam forums to notice.
The reactivity of the publisher Japanese is close to nil.
First, KONAMI are careful to communicate on the subject, certainly fear to undermine its reputation.
Then we do not see any future initiative taken from them, to solve the worries faced by customers.

Concerning two problems that have been identified, one concerning the "Mount" folder.
C: \ Users \ yourname \ Documents \ KONAMI \ Pro Evolution Soccer 2015 \ mount
It should delete this file and restart the game. But it does not work for everyone.

The other concern persons who have the following signs (',,') in their Windows username.
KONAMI would be passed by European names with accents, it boggles ...
I absolutely do not recommend to anyone and change its user name, because he still registry keys with your old name. This could jeopardize the launch games or other application on your computer, so caution.
Unless you have serious computer skills, which is not my case.
You have been warned.

It is KONAMI to arrange with downloadable content in conventional manner to fix the problems.