Back to Back Days on Vo2 Block

I am planning my first proper Vo2 block (previously would just go do a few max effort 5-8min hill climbs every so often without much structure).

I see a decent amount of coaches online prescribing back to back days, eg. for entry level Vo2 block, 2 days per week for 2-3 weeks, with the Vo2 days being on consecutive days.

From my understanding this is so you are able to elicit the Vo2 max state without generating as much fatigue on the second consecutive day, since you are working with tired legs.

I have only ever done intensity days after a rest or easy day, so this sounds rough but I am willing to give it a try.

Any pros and cons / experienced opinions would be appreciated