Sorry, I dropped the ball on this one for the time being because I've been busy, but I would really like to get some actual progress done in an instance sometime before... you know... the release date. The dungeons are likely going to be more of a challenge than people are used to until we're just able to ignore certain mechanics through gear, but Watcher had this to say earlier today:

Finally, it's also worth noting that in beta, we're scaling players down to pretty much the lowest possible level and item level at which you could be running a given dungeon. Nearly all groups in the live game will be better-equipped, but we need to make sure the content is viable at the minimum threshold.
Reading that made me feel a lot better about the few attempts I've had at these so far because some encounters are just straight up kicking my ass and I feel so under geared. >_>