Pros: Keep your feet warm
Cons: Poor materials choice
I bought a pair of these boots in December. My initial experience with them wasn't good, and it hasn't got much better from there. Although the boots were initially comfortable, I found them hard on the soles of my feet. I changed the insoles for some foot doctor ones and that improved things. However, it wasn't long before the durability issues started. The upper lining of the boot (the red and grey bit) gets ripped to pieces if it is in contact with velcro. This is all to easy to do if you let the velcro strap at the top of the boot come into contact with it. You also have to be careful with the velcro on the bottoms of some ski pants too. Not a great material to choose for the top of a boot!
My main reason for purchasing the boots was the air shell. However, this isn't that great either. I find that they need pumping up through out the day to keep the same pressure.
I contacted Tecnica UK about the velcro issue and to be honest, they were rude and unhelpful. I didn't even bother contacting them about the deflating air shell as there didn't seem to be much point. They just wouldn't be interested.
It is a pity that a great concept has been ruined by poor materials and shoddy aftersales service.