vCenter 7.x - VM storage density recommendations

Reaching out to the community for some general advice.

What level of VM density are people usually comfortable with when it comes to datastores?

Is there a recommended limit? Or do people play it by ear, based on system load?

We're migrating to a high speed NVME array, so we're counting on being able to increase our density quite a bit, based on our current loads.

I'd be curious to hear how people like to operate in thier own shops.