What I like about the Electron is it's 9 engine booster. I think the Falcon 9 has shown with modern engine management systems that large number of engines can be as safe, if not more so given redundancies. Building massive boosters should be easier as well, given you don't have to scale up individual engines as large. I still don't know why the SLS didn't dump the solid rockets and go with a 9 engine configuration and reusability instead of the 4 engine disposable design.<p>The biggest problem with Electron is that it's disposable. Rocket Labs isn't NASA, and the Electron isn't the SLS, getting funded regardless of cost. Electron is launching in a competitive market.<p>Falcon 9 launch cadence will increase and it's already much cheaper per pound. Some customers can't piggyback on Falcon because they need a custom or polar orbit, so they'll choose Electron even at a higher cost. But there other competitors are coming in the small payload space, they all have seen that reusability can work, and some have to be building reusable designs.<p>Rocket Lab looks like it could be out in front for serving these small payloads. But to stay there I'm betting they'll need a re-usable Electron, and fairly soon.