I was a bit late coming to the party and only offered/accepted 30 hours since September. We are term time and operate from primary school site. Not all my parents are eligible for 30 hours probably not even 25%.
We have offered school days for a number of years and last year accepted children into our Wrap around facility. Parents who really liked us paid full fees. I got caught by one parent who booked lots of sessions then gave me a 30 hour code and when I refused to claim the funding made life difficult.
So I looked into the funding and took the brave step to accept the funding this year. I am surprised by the number of families who have been eligible and attend lots of sessions.
Things you should take into account is
Although eligible to 30 hours parents want less hours, you can't make them take the full entitlement. So think about flexibility
Think about the finances and your head may want to offer it for free but make sure that you can demonstrate what the loss could be. I have friend who is deputy in a primary school and she would happily close the nursery as she sees it as draining funds from the primary school!
You can make charges for consumables or sessions bear that in mind
If you are making charges make sure the parents know and understand this
Organising the children's day, if you are not used to having children all day everyday (although I think you are already) but you may want to think about your offer
30 hours is only available for 3 months and parents have to revalidate their claim each term. You may find parents drop out of being eligible so what will you offer that child the following term if the parent is not eligible
Do your research what are other nurseries in the area offering?
Would I advise going for 30 hours? We have to be adaptable otherwise we will not survive but do your research and have your vision of how you want the setting to progress.
Good Luck and let us know how it goes.