I just checked the stats on the Golite Valhalla 2 and 4 four season tents made of Epic and SilNylon and it looks like they give you more interior space and more vestibule storage space than the comparable weight Hillebergs. I have no idea how the Golite Epic and SilNylon perform, but they say it would take a long time for rain to begin to penetrate the fabric, which wouldn’t be an issue with snow, but could be with mixed weather. From Golite rep: "I would say that in a Moderate to heavy rain it would take 6 to 8 hours before water may penetrate, light rain would be 12 hours!"
The Golite Valhalla 2 – 7'6" length x 5' width x 3'6" height, gives you 37 sq ft internal space, 2 doors and 2 19 sq ft vestibule at 5 lb 3 oz, versus 32 Sq Ft for the Allak, 2 doors and 2 9.7 sq ft vestibules at 6 lb 6 oz.
The Golite Valhalla 4 7'6" length x 7'6" width x 3'9" height gives you a whopping 56 sq ft internal space, 2 doors and 2 19 sq ft vestibule at 6 lb 6 oz.
Because of the fully waterproof outer on the Allak and other Hillebergs, it’s no doubt much better at handling wet weather for 3 season use. Plus it’s a time tested design, whereas the Valhalla is a new one.
Anyone have any experience with the Valhalla, particularly ability to handle long periods of wet weather, stability and quiet in high winds, and snow loading?
Golite by the way said it's redesigning its site to offer much more detailed information on shelters and other products. Their tent info is pretty sparse now, so you have to email them for details.
GoLite Valhalla 2+ Shelter 2-3 Person 4-Season
http://www.backcountry.com/store/GOL0236/GoLite-Valhalla-2%2B-Shelter-2-3-Person-4-Season.html
GoLite Valhalla 4 Shelter 4-Person 4-Season
http://www.backcountry.com/store/GOL0237/GoLite-Valhalla-4-Shelter-4-Person-4-Season.html?CMP_ID=SH_FRO001&CMP_SKU=GOL0237&mv_pc=r126

This tent/sled worked remarkable well for that application.[photos from their web page]
