Originally Posted by
mypost
Save your cash from going to the Greece-Czech Republic game, and spend it on semi-decent accommodation where you need it. It's an insult to fans that some have to rest in a field, which could be subject to bad weather like at the last Euros, when there were thunderstorms on some evenings. Personal security is also an issue in a situation like that. You could be robbed, assaulted or both. Have some dignity and get a solid safe roof over your head, even if it's just a night. It'll be worth the expense.
There are a number of private "taxi" firms advertising transport to Berlin from Poznan, which could come in handy if you're doing that route after Poznan games during the tournament. You can schedule them for times that suit you, and rates are reasonable, instead of having to depend on trains with inflexible schedules.