Their strategy was to build them where there weren't other dcfc chargers, opening up new areas especially around outdoors places. Their chargers are much better maintained in general than the infamous Electrify America (they really struggle to fix EA chargers when they have problems, and they have problems) - there's a long story behind this.
Rivian started before the plan to use superchargers was even envisioned, so today some of those holes that Rivian was filling aren't so important because tesla superchargers are nearby.
Rivian has done a great job keeping their chargers working, have the software be reliable, just running a good service. Many and maybe most DCFC charger networks (DCFC meaning high power CCS chargers not including Tesla superchargers) really have struggled to match the uptime and reliability tesla SC. Tesla's magic ability it: (1) fix them when they break, quickly. (2) don't just build 4 chargers in a spot, it's almost the same cost to build 8 or 10. (3) string them together along main travel routes to make it possible to travel.
The entire rest of the the charging industry basically fails at those 3 things. Most of them can't manage to fix a broken charger, sometimes in months. One major reason is they often don't have standardized hardware so there might not be a spare hardware to fix something there.
Rivian started before the plan to use superchargers was even envisioned, so today some of those holes that Rivian was filling aren't so important because tesla superchargers are nearby.
Rivian has done a great job keeping their chargers working, have the software be reliable, just running a good service. Many and maybe most DCFC charger networks (DCFC meaning high power CCS chargers not including Tesla superchargers) really have struggled to match the uptime and reliability tesla SC. Tesla's magic ability it: (1) fix them when they break, quickly. (2) don't just build 4 chargers in a spot, it's almost the same cost to build 8 or 10. (3) string them together along main travel routes to make it possible to travel.
The entire rest of the the charging industry basically fails at those 3 things. Most of them can't manage to fix a broken charger, sometimes in months. One major reason is they often don't have standardized hardware so there might not be a spare hardware to fix something there.