What study are you doing?

Have you considered family day care? If you find a good one, I think its nice that they are smaller and more flexible.
Alot of cc's have minimum of 2 days.

My dd started childcare at almost 3 and she goes 2 days/week. There are family daycares here, but no vacancies.
I found the quality of childcare centres varied hugely from centre to centre, and I looked at many before I found one that I was really happy with, and had vacancies. It took a couple of months. I guess you could use a relative until you find one you love. Then your DS will be more used to being babysat when he starts.

Dd's childcare was good about orientation, and then for the first two weeks she only went half a day. After that she was right, and had no troubles sleeping at nap time. They stroke them on the back if they need it anyway. We took it slow, because another one i started her at was pretty horrible, they wouldn't let me stay, and dd cried alot and was pretty upset by it.

She is generally happy about going, although her room has a new group leader, and a new assistant, so she is still getting used to new faces. She loves the new assistant though. You could ask when you look how long the staff have been there for?

I am glad she's getting to be around other kids, because we don't have alot of friends with kids. I think that is a big advantage of cc when they are this age. I have a friend who used to get her mum to mind her daughter, but the mum used to sit her infront of dvds most of the time, so Im glad she's doing more than that at cc. They don't really do activities, just some craft and alot of free play. I don't think the new group leader really has that many activity ideas, because the other rooms seem to do heaps/

Disadvantages: I don't like the food they give them, and dd has started 'killing' everything. Well she calls it 'cool', but they will bring things like that home.