Any improvements in the boosting process in the last few years?

[MultiBear]

For those of you that do Stratholme, do you complete all the objectives? Do you find it worth opening the mailboxes to get the bonus?

Each objective gives a nice chunk of xp, so I've definitely done all of those each time. And that includes opening up all the mailboxes, as that will spawn Postmaster Malorne, who is also a bonus objective. It's the bonus objectives that make it such a terrific instance for levelling in my opinion.