Here i am. I just installed Concrete5 on my server and started testing. Everything works so far. As first thing i'll try to test blogging features. Though my opinion at the moment is that though blogging is possible vith concrete5 it isn't very handy for that. You have to put all blocks ou need on each page by yourself every time. Well, probably tweaking a theme could improve things but still some annoying things will stay. If you wat easy blogging - choose WordPress. Concrete5 is for more complex pages.