I have these on my 2015 4runner Trail. I have had them for around 5,000 miles or so.
From what I understand the tire shops that buy directly from Falken can sell this tire. That's what I was told by Tire Choice anyway.
I went to buy the Wildpeak and they showed me this tire as well. It is almost identical to the Wildpeak AT3/W if you look on Falken's website and compare the two.
When I saw the two in person, side by side, I actually preferred the Rubitrek.
They have been wearing well so far and are fairly quiet considering the tread pattern. They handle very well in the rain.
I bought the P265/70/17. They seem to be larger than the other 265's I have seen. In the shop they stood it up next to the Yokohama Geolandar G015 and it looked at least a quarter inch to half inch taller.
They told me the previous Wildpeak wasn't that great but this was a really good redesign. Also the Wildpeak is going to come stock on the 2020 Rav4 TRD Off-Road model. That should give some confidence to possibly buyers.
https://www.motortrend.com/news/2020-toyota-rav4-gains-trd-off-road-model/