To be fair, overall I think the invasion's pretty decent. Not as enthralling as the third invasion (before it dragged on forever), but that may just be because 1) the third invasion was my first and 2) I had a lot more time to put into involving myself in that one.
Overall, it's pretty good. We got tricked, got some victories, defeats. Feels hard, but not hopeless (like with real 100 000+ CS hordes) or frustrating (like constant late-turn moves and abuse of teleportation abilities).
My biggest gripe is with the current state of the game, and not the invasion. Invasion's fine. Hell, not even my spell checker's working with the new message box...