We used both for our little one a few years ago. He was 3 1/2.
We had planned to use the Club exclusively.
But then I tried to drop him off one day, and he was tired and clingy and had a melt-down at the idea of separating.
(He really needed a nap, and I really needed grown-up time.)
So we walked over to the nursery.
A nanny came out, and rather than being all "BRIGHT and ENTHUSIASTIC", she was calm and soothing.
He happily went into her arms.
She carried him into the nursery, rocked him a few seconds and he fell asleep and napped for almost 2 hours.
He woke up wet, so they just put him into back-up clothes. No big deal.
He had ONE accident at the club later that week, and they were also cool about it, though obviously I had to bring clothes asap.
At that point he left with me because parting again wasn't happening.