Sabotage in Eastport is supposed (as far as I can tell) to slot in inbetween Trail of Blood and Life of the Party in the official Thief 2 campaign, and in my opinion does so pretty smoothly- its plot (it details Garrett's attempts to prevent the installation of a much stronger kind of builder's child in Angelwatch before he can get there) never feels particularly necessary to include in the wider T2 narrative, but neither does it feel forced, awkward or out of place.
SiE is a small map with a lot of verticality, many opportunities to pickpocket, some entertaining side quests and a lot of condensed flavour into a tiny space. If you like second-storey work and climbing in windows, unusual objectives and uses for underused items, you'll find them here. The degree to which Intruder has managed to stack in interesting spaces to burgle along and up residential terraces is one I've only seen bested by one other mapper.
I finished in about an hour, and thought I must have almost exhausted the loot, but in truth I'd only found about 5/6 of it. This FM has a lot of colour and was a pleasure to play.