I went with a confinement centre for my first and honestly it took a lot of stress off, especially since my husband couldn't take much time off work. You pay more upfront but the food is consistent, there's always someone around if you need help at 3am, and I didn't have to worry about vetting someone's background or if they'd show up. That said, some mums I know preferred a nanny at home because it's more flexible and cheaper, and they built a real relationship with someone who knew their baby's routine. For word-of-mouth, I'd suggest asking your gynae and KKH friends directly since those connections tend to be the most vetted. If you do go the nanny route, try to meet them in person before committing and don't be shy to ask for references from recent families they've worked for.