You know, in all the times that we have been to DLR, I have never been in June. I am not really sure what to expect. We have gone in July before, (actually over the 4th), and that was a madhouse!

But in the surge of APs in the last couple of years, the crowds and seasons have changed so dramatically. I would have never imagined it would have been so busy in October last year, because that used to be the off season. At least two of the days we were there (maybe three... I can't remember), they were nearly at park capacity. Almost every day it was re-entry w/ handstamps only... and that was not the most enjoyable. It made leaving the parks at any point of the day a little scary because you didn't know if you would be able to come back in later.
I guess that is why I would even be considering a June trip. Busy times and not so busy anymore, and the off season is packed! I figure June can't be any worse than trips I have had in the past, as far as crowds go.

And besides, any trip to DLR is better than no trip at all!