For all you sound guys, they bought in engeniers for sound from IL the main production company was MC Productions (Micael Caplin) who is considered one of the best if not the best in the line in the jewish world, and AF productions did the logistics as they are more local.
I did attend both siyumim whilst the metlife event was nice and insporational the speeches were too long and too many considering the lengh of each one, as for the other aspects of the siyum, at metlife they seemed to make sure the high rollers and machers were happy and had what they wanted and the rest seemed slightly forgotten, and i think one can make the oppisite argument some are making about the english vs yiddish i was at metlife and there was at least half maybe a little less of the attendees that understand yiddish and they felt the event was mainly geared to one sect.
Now at Dirshu they did not provide the type of lavish food aguda gave to their high rollers but on every other aspect they well and truly delivered i'm not even going to talk about the music because it was on a whole other level, the speeches were shorter (besides for one that went more than 10min over) and more in number but they were very good and to the point. only rabonim and R' Hoffshteter got kavod and no one else. There was food for everyone not just people who paid for expensive tickets, and last but not least i left inspired to make sure that when i finnish each daf to have a good understanding of it and not just listen to a shiur and go on my way without making sure i have the daf stored by me.
p.s. we really missed having R' Abish Brodt singing