With the purchase of the 30 day blocks and the “only pay for when you actually use it” is a block divided between hours/days of use or is each 30 days to be used as consecutive days?
No, it works like this: The entitlement is for a 30 day period starting from the date of purchase, but is capped to 200 hours within that 30 day time span.
Also, the entitlement is shareable non-concurrently across anyone collaborating in your virtual studio. What that means is that anyone in your Org can use the software associated with the entitlement, but only one at a time. It’s a bit like a floating seat.
I hope that answers your question and more!