Was it short? Yea. Was it sweet? Hell yea.
More in depth, I like that it wasn't too over the top yet still felt punchy. We were with a group of free vortigaunts which automatically tends to have the bar set skyhigh, but overall the balance felt neat. We weren't getting pancaked, but it wasn't an exact cakewalk either. The soldiers were pretty weak, but knowing the main event were the synths, I don't mind that they weren't the punchiest. We had our work carved out with the synths. And to balance out us getting extract boosted, the synths got a lot hardier. Save for the first combine bot I blasted while it was on the bridge.
Only real thing I can somewhat say was a downside was... me. In the sense that I was the only one of the playing vortigaunts who was able to exploit the low gravity the map provided, allowing me to easily scale map geometry or snipe NPC's. Or bully them from where they couldn't reach me. I have no clue why the others couldn't super jump, but I used that to counter snipe the snipers.
Overall however, a nice wave based gauntlet to advance the story. Would xen again.