... what is interesting about both is that it looks like I could use either of them as my main edge router and let it do link aggregation from my two ISP data links.

I am now looking into what kind of reporting system, if any, they offer. Let's say I wanted to know if/when a specific IoT device (namely, a Netatmo thermostat) is communicating to the outside world, how easy would that be? in what form would such info be provided to me?