They have really good reliable products for years, like classic Archer C7 router, for instance. Archer A9 is a new excellent router too, Archer C2300 is very good performer for the price, Omada line products is very reliable and competing with more common brands in small business segment, etc. About Chinese brand... ASUS is in fact Chinese brand too. Taiwan is officially a territory of China (PRC). What I personally don't like about ASUS lately is increased false advertising (following industry trends) and decreased quality control (cost saving measures, perhaps). Also, I wouldn't buy either of the products you are asking about. The price is too high and WIFI 6 is still work-in-progress. For the same amount of money (or a bit more) you can get a x86 appliance, a switch and two AC access points. Then you have the options to upgrade components separately, if needed and when needed.
I'm currently using (may change in time) small business series TP-Link TL-SG108PE switch (managed with PoE) and TP-Link EAP245 V3 access points (AC1750 class with PoE). Not because I like TP-Link so much, but because of excellent price/performance ratio they offer and very good user reviews. And indeed, the products are trouble free and easy to use. My router is a x86 hardware box running pfSense Firewall. It can do whatever you want it to do, your imagination in networking is the limit. If you want to learn something new and build a really reliable high performance and enterprise class security home network, think about it. There is no comparison to consumer routers. You have many options to chose from from different manufacturers - routers, switches, access points, network controllers, etc. Some combinations may cost a lot, but you'll have a network, not a just a flashy spider-looking toy.
In case you really want an ASUS router, go for RT-AX88U. You can run Asuswrt-Merlin custom firmware on it, expanding the routers functionality even further. As per users' feedback, it is a reliable model too with one of the fastest router hardware available and excellent WiFi speed and coverage. It is also cheaper than RT-AX11000.
Is PFsense hard to configure? Does it have nice UI?
What I can do is grab one of the 260$ [209$ on sale] 10 port multigig netgear switches, x2 10G, x2 5G and x2 2.5G rest 1G ports, for access point I can use my current router, it has good signal, DIR-882 i think its rated here on the sites rating in top 5 or 6. so i live on 3rd story apartment and my parking is across, not below building but kind of 100 meter away and not across my window, i cant see my car from my window at all, and sitting inside my car with closed door i get both 5G and 2.4G signals, today I even run Speedtest and got 120Mbps down and upload maxed out 100Mbps.
Anyway for the "Brains" I can get one of the specialty build Intel Celeron boxes made for pfsense, no fan fully silent, sold on amazon and aliexpress, has from 2 to 6 Intel 1G ports, or I can use RouterOS based Ethernet only router HEX S with 256MB of RAM, I ordered it from amazon because it has one SFP for my fiber internet and wanted to use it in Bridge mode connected to my router, also I plan to build Rasbery Pi 4 based PiHole box, I heard it can also act as DHCP, but I never used and have no idea if it does firewall too.
I checked some of the RouterOS settings and its a headache, way too many options and complicated, its something you actually need to learn and look up videos of features explained its not just pick up and use if you had prior knowledge in otehr network devices, so thats why im asking if PFsense is complicated like RouterOS?
Can it also do Load Balancing? I want to bond my old 500MB cable with new 1G Fiber for both speed and backup.
That AX11000 router has one big plus for me, why Im interested, I seen some reviews doing SSD benchmarks to USB 3.0 and 2.5G Ethernet to PC [Best case scenario to get actual possible USB speed] and it was doing 148MB/s read and write, so I can get one of them USB 3.0 4-Disk racks, either RAID based or no RAID and just plug it in and ill have something that faster then most Classical NAS boxes that limited by 1G Ethernet port, my PC will get max speed [10G Aquantilla and AX200 wifi Intel build in].
Also because it has 2.5 port in future I can get MultiGiG switch like the one above I mentioned, connect it to 2.5G to router to get 300MB/s "fastpath" and all the rest of my devices will be pluged into switch.
Both solutions work, ASUS will give me for now ease of use, and out of the box load balancing, USB Based NAS option and gaming options, including WTF or whatever its called and ill be able to upgrade it later by adding MultiGIG Switch.
Your solution is more PRO, will get me more control over my network, but will be more complicated and right now will lack AX [which i dont have any clients anyway]