Thanks. I have the ac 68u and had that for 5 years, as it is now I think its pushing the limits for it with our households needs. Gaming, streaming and so on, specially when others are gaming and streaming it can stutter sometimes. The isp speed is fiber with 250/250.
I ordered my
ASUS RT-AC66U Dual-Band Router back on February 21, 2013. This is the first version, not to be mistaken for the revised
AC66U B1. I paired it with the Motorola SURFboard SB5101 I was using at the time. A little over a year later, I upgraded my internet speed from 50/20 to 150/40. With DOCSIS 3.0 becoming more pressing, and looking for an excuse to upgrade, I picked up an ARRIS Surfboard SB6183. The two devices were like a match made in heaven.
I used that setup without much issue up until June 21, 2018, which is when I upgraded my internet speed to Comcast's Gigabit tier (1000/40). My previous setup couldn't handle the new speed, so I purchased a NETGEAR Nighthawk X4S DOCSIS 3.1 Ultra-High Speed Wifi Cable Modem Router Combo. It was horrible! I couldn't deal with the step down in customization after having used Merlin's FW for so long, so I returned it within a few days and went back to my previous setup. On July 5, 2018, I picked up an Asus RT-AC86U router and Motorola MB8600 modem.
The Asus RT-AC86U is a fantastic router! So good, in fact, I bought another one on August 21, 2018 for AiMesh. Pairing them went reasonably well, and I truly thought I'd leave it at that. However, I knew when I purchased the AC86U's, my heart wasn't in it. I really wanted the AX11000. I was just reluctant to spend $499.99 on a router (at the time), especially considering that my AC86U's were significantly cheaper together.
Fast forward to May 24, 2019, I couldn't hold out any longer and purchased the Asus ROG Rapture GT-AX11000. It was $50 cheaper, too. So, with the AX11000 in my computer room, an AC86U in the living room, and the other in the garage, I'm satisfied with the outcome. I did test the AX11000 on its own before meshing the network, and it performed great. The furthest corners of the house and garage would be down a few bars, but never dropped connection. Needless to say, the AC86U's fixed that issue.
Like you said, with so many devices streaming, gaming, etc...bandwidth is in high demand. A tri-band solution is most definitely the better way to go. With the AX88U being dual band, you wouldn't be able to have "
a dedicated 5 ghz ax band for just gaming and the note 10 and one 5 ghz for the rest of the clients not supporting ax" as you clearly stated.
Anyhow, you'll definitely be future proofing with the AX11000. So, if you find one at a comfortable price point, definitely pick it up. You won't be disappointed.
Buying an expensive, top-end AX router at this point is not future-proofing. It's just spending top $ to get an unfinished product that doesn't even support the key features AX is supposed to support (OFDMA, DL AX MU-MIMO). The AX spec approval has been pushed out 9 months.
The ROG features are also available in a less expensive AC version if that's the main reason for buying a gaming router.
The AX spec is all but finalized. WiFi 6 MU-MIMO and OFDMA are already being tested on the AX88U, and it has already been recognized as Wi-Fi CERTIFIED 6™ by the Wi-Fi Alliance®. To even make such a decision can be viewed as confirmation that the AX88U has the required hardware specs to fully support the AX spec. So, it goes without saying that the even more capable AX11000 will definitely meet specifications.