I just started Eureka.

[redcurrant18]

I'm just wondering when this content starts to get fun?
Like, approximately what level.

So far I'm three levels in and I'm quite bored.
Is there some other way I can acquire my job's level 70 dyeable gear than to do this?

You might want to wait until Eureka is either nerfed into oblivion, or for the gear to be made purchasable by other means. For dyeable Heavensward gear for example, you only have to grind Centurio Seal Hunts for 1-2 days to get a full set. I imagine they'll implement a similar system in Shadowbringers.