It's certainly the lightest 5-string I've played, and balances indeed rather well.
For me, there was no immediately noticeable benefit of the "Endurneck", though I liked the 35-33 inch fanned fret layout better than Dingwall's super-long-scale 37-34 inches. Then again, the Dingwall Super Series 35-32 inches, to me, feels better still.
At the end of the day - it comes down a value vs ergonomics proposition. Weight-wise, I think the Strandberg was about 250-300g lighter than a Status Streamline 5-string, which you can get custom-specced for around £2k; plenty of definition on the Streamline's low-B too, given that it's all carbon, and build quality is miles apart.
If you're after not super-long fanned fret basses, then the Dingwall S's come into the picture. Of course, if you want super-light + fanned-frets, then this is pretty much your only option - for now.
That's my experience, so far, anyway - would be curious to hear what you think once you've had a go