Hi! I used the mod quite a bit in multiplayer and I figured I'd leave my experience here.
We didn't experience any significant performance decrease when my partner and I were playing multiplayer via Steam Invites though this could be because we both have pretty capable computers. It ran well and was quite helpful even with bot count on every planet save Aquilo numbering in the thousands.
We also tried it on a dedicated server hosted through Indifferent Broccoli. Unfortunately, it seemed to make the server quite unstable after we expanded to three planetary bodies (Nauvis, Vulcanus, and the modded moon, Muluna). Nauvis had a bot network with 5000 bots. Muluna's was around 200 bots. Vulcanus' was around 2000 bots. The instability manifested as frequent disconnects and latency for every player. It was quite odd, because while the time usage was on the higher side relative to other mods, it was not the highest. Yet, when we removed the mod, the server stabilized. The server's UPS stayed a consistent 60 before and after the mod's removal, so I unfortunately can't point to a specific culprit.
Overall, I think the most useful feature to me ended up being the suggestions, specifically the suggestions related to storage management (mismatched filters, capacity of unfiltered storage, and so on). I think being able to toggle the heavier aspects or even a Lite version where these aspects such as undersupply and deliveries are turned off would be great for usage on less capable machines or servers.