lbene wrote a review of Dynafit One PX - TF Alpine Touring Boot - Men's on April 7, 2013
OK- cheesy- but it really is. I converted to the TLT-5s last year and loved them. However- they weren't quite as stiff as I would have liked for some skiing out here in the east. These boots dial it pretty much just right- they have %80 of the touring ability as the TLT-5s with I'd say 30-40% more stiffness.
I still use the TLT-5s for pretending I'm a lycra clad rando racer but for the rest of the time I use these boots and find that they allow me to do more on the downhill. They also have never given me blisters. I've had problems with BD boots in the past that were properly sized and molded but still gave blisters if they weren't tightened in touring mode. I just did some long days with these boots into the 10th mtn huts and my feet were the one of the only ones in the group that didn't look like they'd been through a pencil grinder.
My only complaint is that they are actually surprisingly cold. I find my TLT-5s are warmer (strange- I know) but I have warm feet so this isn't a deal breaker.
I use them on 176 BD Drifts and 176 BD Stigmas with Dynafit TLT Radicals and Dynafit TLT Speed Radicals. I've got average feet, 27.5, and weigh 165 at 5'11''. I'd say an advanced skier but not a cliff hucker.
+: Stiff, comfy on long tours, amazing touring mode, love the soles for hiking around the hard granite of the White Mountains
-: Strangely seem a little cold, wish there was a little more rocker in the forefoot for walking (though understand this would make them not compatible with Fritschis so I guess worth it).