The killer feature in pfsense for me was no limit on OpenVPN servers.
Having previously used Asus routers with Merlin firmware, it was limited to 2 OpenVPN servers. However, the breaking point was having my “data” siphoned off to a 3rd party if I wanted to use some additional features !!
Pfsense will suit most home users, it has a steep learning curve but the information is out there if you are prepared to get hands dirty.