My 3-season tent is a MSR Hubba Hubba NX and its quite OK. Not really perfect, but quite a good compromise in weight, handling, and function.
Now I'm looking for a 4-season tent, that provides similar space (narrow 2-person tent with a small apsis that will be used for me soloing), but is suitable for winter/snow camping.
Need not be suitable for Himalayan expeditions, just for tenting here in the Alps, where conditions might not be to far off from what you have in some points.
Price doesn't matter much.
What would you take?