In case it helps for a comparison - the Yukon has the same (sort of) outer fabric but is ~85g lighter (quoted weights at least) while also being non trivially warmer.
From magazine tests etc the PHD minimus stuff is ball park to the Vega warmth wise, and the Yukon is definetly more. There's the alpine ultra too I suppose.
A bit of the warmth/weight comes from the pretty crazy down PHD use on this, some from minimalism (especially perhaps the hood) and a bit from it being a box wall jacket.
Obviously its also a little more expensive, you have to wait for them to make it and the fit is a little bit random as no chance to try it on. Unless you get it custom made which obviously costs a bit more.
Obviously rather impossible to tell someone how they should decide based on this sort of thing
The Neutrino Endurance/North star both seem to magazine review about the same as the Vega, so split by fit, personal taste and the like rather than anything else.