MLO is one of the clearest practical advantages: it lowers lag, strengthens reliability, and makes wireless gaming feel close to Ethernet.
Pros: wireless performance, Wi-Fi speed
Cons: content filtering
Best Wi-Fi Routers for Multi-Link Operation
MLO provides some stability and congestion benefits, but gains are not consistently dramatic without 6GHz and full multi-radio operation. It is useful, just not a reason by itself to buy...
Pros: Wi-Fi speed, close-range speed
Cons: mesh performance, seamless handoff