While I'm sure the DM put a lot of work into the campaign to smooth out the kinks, we had a blast. The campaign mostly sticks to Khorvaire, starting and ending in the Mournland. The player's guide includes some decent hooks for tying the PCs into the setting via their backgrounds (Acolyte = Disciple of the Sovereign Host, Charlatan = War Impostor, Criminal = Resistance Leader, Gladiator = Aundairian Special Forces, Hermit = Brelish Deserter, Noble = Cyran Aristocrat, Outlander = Conscientious Objector, Sage = Morgrave University Professor, Soldier = Officer of the 12th Brelish Infantry, Spy = Ear of Thrane, etc).
There are a few stints in Sharn along with sojourns to Institute of the Twelve, Arcanix, the Realm Below, the Cathedral of the Silver Flame, and even the ruins of Metrol. (For the latter, the DM mixed in some content from Keith Baker's "Dread Metrol" Ravenloft supplement).
The Lord of Blades and his fanatical warforged are the ultimate bad guys, with the adventure culminating in the PCs forging an alliance of armies to fight against the LOB to defeat him once and for all. However, there are a series of other baddies to tangle with, including Emerald Claw agents, a daelkyr lord (Valaara), a few dragons, a warforged colossus or two, and so on. There's even a lengthy side plot involving an elven conspiracy led by some undying Aereni paladins.
The PCs fly on an airship, ride dinosaurs, battle the Lord of Blades for the Argonth, seek to uncover elven sleeper agents, untangle the secrets of the Draconic Prophecy with Flamewind the sphinx, and more. There is an Indiana Jones-style flashback episode that takes place on Xen'drik, which I think is the only bit of the campaign that doesn't take place in Khorvaire (barring a mission or two into Eberron's planes).
There's also some add-ons that you can get via the DMs Guild, including the very fun Dino World segment (which features a Jurassic Park-style theme park near the ruins of a Cyran resort town.)
In my opinion, it does a fantastic job capturing the post-Last War noir and pulp action vibes of Khorvaire. Again, this might have been due to the DM's skills, but I felt like even at the higher levels, we still had reason to interact with the movers and shakers of Eberron, including Prince Oargev of New Cyre. At no point did I feel like we were untouchably powerful, even at level 20.