Merlin on Tenda W1800R ?

I've read that the hardware for the Tenda W1800R/W1801R is the same as the AC66U (but with 16Mb flash). See specs here: https://wikidevi.com/wiki/Tenda_W1800R

I have 2 of them on order that I'm going to set up for friends.

These routers can be flashed with Tomato Shibby. Has anybody tried running Asus-Merlin on this device?