Pros: fit, strenght, look
Cons: tricky to get the inside shoes out
Bought this shoe last summer. Another user mentioned that the boot did fit perfectly in the shop and didn't anymore on the slope. That's a common error: if you try on boots in a shop, they should feel super tight on the brink of causing you pain. This is because they will eventually loosen and adapt to your foot. If they already feel "comfy" and soft in the shop, chances are high they will slack on the slope.
Anyway, what can I say? The best indicator that a ski boot is great is if you don't really think about it anymore once you're in it. And this was exactly the case with the Dragon 100 UltraFit. Very comfortable and at the same time very stable and ready for every challenge. The 100 flex is sufficient as long as you're not a competitive ski racer - I find it ridiculous how so many people buy themselves boots with higher flex just to show off. I'm a ski instructor and like to go freeriding as well as staying on the slopes and I never had the feeling I needed another boot.
The only minor issue: If you want to get the inner boots out of the shell every day after skiing (which you should definately do!), it takes some time, because Technica didn't include a strap or handle at the top of the shoe. However, it's worth it. Have been skiing with this boot for 4 consecutive weeks now and still no smell at all.
Bottom line: perfect shoe for advanced skiers who don't want to hurt themselves in 120-150 flex shoes.