I should first preface that this is my first AT boot so I can't compare the Scarpa Typhoon to others. But I've put on 6 long days on them this year and have been very pleased so far. I don't normally like a stiff boot, and my alpine boot (Technica Vento 10) is rated at a 95 flex. The flex of the Typhoon is so similar and the fit is super comfortable that I will end up wearing this everyday this year regardless if it's at a resort or in the backcountry. I was pretty surprised at the weight as well (for reference, mine are a size 27.5 and weigh 8lbs, 4.4 oz for the pair or 3757 grams for you metric freaks). Although there are other lighter options, only a handful can combine lightweight and high performance in the AT market; the Typhoon is one of them. I've had no trouble piloting skis with waists of 96mm, 112, and 136 while wearing these boots. Even at high speeds in choppy snow, they provided enough stiffness to make me feel stable. Walk mode is great and I use it whenever possible since it makes hiking that much easier. I've done two tours with the Typhoon that were 2,000 feet each: one with the stiff tongue and one with the touring tongue. After experiencing both, I highly recommend using the touring tongue on the way up and then switch out at the end of your climb. Swapping out takes all of 15 seconds and your feet will be a lot happier. I haven't done any mountaineering or have used the rally sole yet, so I can't comment on either but I hope to be able to provide more input on this later in the year. Overall, I'm very happy with the purchase and would recommend the Typhoon to someone looking for an AT boot with middle-of-the-road weight but better than average downhill performance.

This boot is great for AT and a great all arounder for most. I'm used to relatively stiff dh boots, and this is definitely a compromise in performance from my 120flex nordicas. However, the weight savings is phenomal over a dh boot. The front/rear flex is a little soft, but should be fine for all but the hardest chargers. I'm about 230 lbs with a pack, and lighter people should find this boot is plenty stiff. These boots drive the big skis just fine (Goliaths, XXL). The only things I'd change are the tongue is kinda a pain to get back under all the buckles and the front buckle is really difficult to unbuckle. Overall, a good AT or intermediate/advanced inbounds boot.

I ski all over the place(rockies, S. america, europe, asia). I do alpine touring ski mountaineering and lift served. I like AT boots because of the lightness;not just for touring but for air travel also. These boots are great for me. They have all the drive necassary for any task, they are warm and comfortable. I love the the new Alpine/AT sole. I use mine in alpine bindings and Fritchi's. This is a fairly high volume boot. I would say the flex is medium to firmish. In touring mode it is very comfy with or without changing the tongue. They are a bit of a pain to put on and off but that not really important. These would be great boots for a guide, patroller or anyone with a very high instep.
Be careful with the beautiful intuition liners . They abrade easily and there will be rubs from the shell to protect from.
Cons: The color is putrid, who cares (subjective)