Just basic home use in an apartment building. Web-browsing, streaming, downloading, a little bit of gaming...
Asus has good firmware support and I've used their ac58u for a long time. As for the customer support, I don't recall the last time I ever had a good experience with any, so that doesn't really matter.
I've never had any Tp Link model, but they seem to offer good quality for the price.
Overall, I don't have much experience with network equipment, I just buy what seems to offer the most for a lower price. Now I'm not so sure, since the product range in my country has reduced (probably due to the pandemic situation).
We you able to decide which one to pick? I'm also having a hard time choosing a good router. Here are my picks:
ASUS RT-AC59U (around $76)
Pros: Cheapest of the 3 ; Recently released (Oct 2019)
Cons: Doesn't support bridge or MESH mode (in case I re-purpose it); Doesn't have any removable antenna
TP-LINK AX50/AX3000 (around $128)
Pros: Latest Wifi standard (Wifi 6) (I have Wifi 6 supported device). Recently released (Nov 2019)
Cons: Common negative reviews about heating issues; Doesn't have any removable antenna
ASUS RT-AC680 (around $140)
Pros: Have multiple features (bridge, AP, router and MESH mode); Removable antennas
Cons: Most expensive of the 3; Old manufacture date (Sept 2013)