I have had these tires for 13K miles so far and they have surpassed the 2 different sets of Michelin's I had. I haven't had them in the snow yet so time will tell. First were the Cross Terrains and they were quiet but sidewalls were soft and lasted about 65K and were awful in the snow.
The next set was the Latitude Tour (not HP) and those were extremely quiet but I didn't care for them in the heavy rain, they did not inspire confidence with regards to hydroplaning resistance. I'm not driving at 90 MPH in the pouring rain but a little standing water at 65 gave a few white-knuckle rides, snow traction was decent though. Those lasted 70K.
The LX-20 is by far, the best tire I have had and it does give up a very, very small amount of plushness to the Latitude but not much, only over slightly rough road surfaces. The Latitude is like a pillowtop but the LX-20 is also very quiet. At 70 MPH I cannot even hear the LX-20. Dry handling is superior to the Michelins and the wet handling is above and beyond what I expected, the LX-20 is simply amazing in the wet, absolutely stable at hwy speeds when raining. Any tire hydroplanes at high speeds in deep water so use your best judgement
Seems that the early tires may have had balance issues, I have had no problems. Just be sure to get a road-force balance and make absolutely sure your alignment is in spec..the alignment is paramount. Someone stated their set only lasted 5K..no way I believe it was a tire issue but a vehicle problem. The comparison from someone about the Alenza for the Lexus LX470 stating the LX-20 isn't suited for the larger vehicle needs to know they have the same load capability and I find the LX-20 a very robust tire and use it for towing with zero isues...very solid tire.
So far I am down to 10/32 on the edges and roughly 10.5/32 in the center and likely due to some hard cornering and after 13K miles that says alot.
Mileage has stayed the same as with the Michelins so no improvement is expected.