I wanted to bump this thread since it has been about six months.
In mid-May I installed two ZSTLR-1HW receptacles in my rental townhome: one on the first floor near the entrance, and one in the third floor hallway. They just work. They seem to route packets just fine.
This townhome uses Keen Home Smart Vents extensively, which has been a terrible saga trying to get them to stay working. With battery modifications, I have observed that the vents on the first (two vents) and third floors (four vents) have kept on chugging along with fresh EBL AA Li-Ion USB batteries between the end of May and October 21 - 26, 2024 (five months) before a subset of them died within 5 days of each other (specifically: two of the four vents on the third floor, and none of the two vents on the first floor). However, the second floor vents had about half of the lifetime: all three vents died within about 2 months.
I suspect it has to do with the location of the repeater nodes so I am going to get two more ZSTLR-1HW receptacles and see if adding one or adding two to the second floor has a measurable effect on battery lifetime.
