Bar none. It's that good. It's expensive, yes. But it's perfect.
I'm 6' and 150#. A medium is perfect on me (room for layering underneath) and a large is HUUUUUGE on me. Throw an Atom or Hyllus underneath, and you're ready for anything.
Or wear it without a liner, and the ventilation and great Pro Goretex will keep you dry and comfy. The shell feels softer than other pro-shell gear I have, which is a nice feature. But it has also been incredibly durable. I have 0 concerns about durability or how it will last. I've got a few years in mine now, and it looks brand new.
At first, I really didn't like two features: 1) I felt it was too short; and, 2) I missed low hand pockets for skiing use. Let's be clear...this isn't designed as a skiing jacket. The length has grown on me...particularly if you rock some bibs with it (like the Theta SV bibs). Even without bibs, it's long enough to cover your rear.
The missing hand pockets? Well, that's a design feature to accommodate backpack hip straps. When I'm wearing a backpack, it makes perfect sense. When I'm not, I miss my hand pockets. That said, I wouldn't take a different jacket if you paid me. I've had Patagonia, REI, Norrona, North Face, you name it. The Alpha SV is the real deal. Drop the coin on one now, use it forever.