Likewise, I'm looking at other ISP's as well. But realistically, they all use the same national backhaul providers, they all use the same internet gateway and they all use the same international bandwidth providers.
And from my experience they all use contention ratios that squeeze as many users down their skinny pipes as possible.
If anybody has any recommendations for an ISP who provide reasonable performance (good would be better) have a helpdesk that doesn't take hours or days to contact and who are actually helpful, please...........let the rest of us know.
No, they don't. National back-haul can be obtained from more that one place (Spark, Chorus, Vodafone, Vocus, Feenix, 2degrees for example). The back haul providers sometimes share some paths due to physical constraints in some circumstances but normally this is at an OTN layer so not load dependent. Same applies on International transit, yes we currently have three cable paths (East/West on Southern Cross and East on TGA) but the tire 1 transit providers line Spark, Voda, Vocus, (AU), 2Degrees, Feenix etc lease OTN channels and have completely separate and unrelated overseas equipment and load/issues on one in no way affect the other unless it is a common underlying link.