An excellent sub 1-kilo offering with reasonable downhill capability for those that like to move fast and put in big days.
The design of the boot is simple and eye-catching, especially the BOA system on the brass rollers. I can't say if these make much of a difference over a traditional BOA, but they certainly look cool. The ski-walk mechanism and the single top buckle are both solid well-machined aluminum. With both unlatched, the range of motion is insane (I can drive my manual transmission car in them). The simple design of the boot limits the amount of failure points on the boot over some of the more complex offerings from the competition, and would make field repairs easier to figure out in the case of a failure far from civilization.
These boots fit me wonderfully right out of the box. The liner is quite thin and dense so I didn't bother to mold it, and it seemed to have molded/packed out to my foot shape after a few days in them. While the last isn't exceptionally wide at 100mm, they have quite a bit of volume in the forefoot and arch area of the boot compared to similar offerings from Dynafit like the TLT series or Scarpa like the F1 (both of which I have tried and not had much luck with). After plenty of 6-8k vert days, I've yet to have any major issues with blisters, hot spots, or foot pain.
The Palau liners are light and thin but surprisingly warm, and seem to be very well made. After ~30 days skiing in these boots, the liners are not showing any unusual signs of wear. They do have eyelets to lace them, but I haven't found the need to lace them up. The back of the liner has a place to attach an included velcro-on spoiler, which I have found helps a lot with the stance and fit in the calf area.
For real-world backcountry use, the downhill performance is quite adequate. I certainly don't forget that I'm skiing a feather weight boot, but I don't feel held back by it either. An experienced skier should be able to ski (although perhaps not exactly charge) on just about any terrain or snow condition on these boots. Like most tongue-less boots, the flex is not progressive and they ski best if you keep your weight relatively centered vs. really driving the cuff. They're nice and stiff until you hit a certain point, then they just fold over. In real world backcountry ski conditions I don't find this to be much of a problem. It would be more of an issue resort skiing in choppy conditions, which I definitely wouldn't recommend these boots for.
In summary - a light, warm, and comfortable boot that you can spend all day running around in the mountains in and confidently make it down anything you end up on top of. Light is right!