I guess it depends what you're load balancing, you do get pool checks from ipvs and node_exporter has an ipvs collector if you're using prometheus (we are). As

I guess it depends what you're load balancing, you do get pool checks from ipvs and node_exporter has an ipvs collector if you're using prometheus (we are). As you say the amount of traffic it can handle in comparison in stunning and especially if you're load balancing over a large number of ports it's less to configure than HAProxy, but it works at level 4 so if you need HTTP stuff it's not much help.