I bought this guide for 2010 summer holidays (2009 edition). I visited Bulgaria, Romania, Ucrania, Hungary and Poland, a backpacking travel. I found it very useful, but like in other Lonely planet Guides there is always a bit of outdated information. For example, in Bucharest there is a hostel listed on the guide wich was closed 2 years ago.
There is plenty of information on cheap hostels, nice places to eat and transportation information was clear and useful.
If you plan to visit these countries, this guide is THE GUIDE.