Where are the ASUS ZenWiFi XT9 users ?

[palmaholic]

ASUS ZenWiFi AX6600 Tri-Band Mesh WiFi 6 System (XT8 1PK) - Whole Home Coverage up to 2750 sq.ft & 4+ Rooms, Charcoal & ZenWiFi Pro AX11000 Tri-Band WiFi 6 Mesh System (XT12 2PK)​

Almost 9 Benjamins on AMZN. Top dolla makes me want to holla. Why not just get the ET12 if you willing to pay top dolla.

The reason for not getting ET12 is its 6G band may not be worth my while. If I'm not wrong, ET12 comes with 3 bands: 2.4G, 5G, and 6G bands.
As you heard from me, I'm going to wirelessly connect the 2 nodes between 3 storeys (i.e., 1 on G/F and the other on 2/F). So, it'd then be either its 5G band or even 2.4G band (hopefully not) connecting the nodes, given all the obstacles and distance in between. IDK if I'm doing my maths right: an extra 5G might be much busier than a 6G band, but it definitely better serves as a backhaul between the nodes.
Please correct me if my thoughts are wrong. Thank you very much.

 

[palmaholic]

Oh, I just realised that I'd missed an important point. Currently, I'm back to my old AiMesh network with AX88U and AC88U pairing. The connection right now is from weak to OK. IDK if swapping to XT12 will help. Wishfully, I was hoping XT9 would help, but they didn't. Is it because of the new 5.9G band? I guess it may be as weak as a 6G band in terms of distance-wise.
I do have doubts if this XT12 pair will help my case. Or perhaps, there're other better yet cheaper solutions. Again, please advise and help me to ring the bell. Thanks.

 

[palmaholic]

Sorry, I'm really sleeping on the matter. Will it be safer to get 1 XT12 and 1 pair of XT9's instead? Or even, 3 sets of XT9's? The connection will then be more guarantee.
Any advice? Thanks.