We do a combination, but we definitely love our MCHC. The nurses and doctors all know us by name whereas its the private doctor's office - not so much the paediatrician, but the nurses - that makes it feel like a factory. While the MCHC do cover all the vaccinations that are required in Hong Kong as well as do a thorough health assessment for your child, there are some vaccinations that you may want that are not available at the MCHC. For me, they are the ones for rotavirus and varicella (chicken pox). The varicella one is also available as a combination with the MMR, so you can either skip the MMR shot at the MCHC or go for the varicella one separately at the private doctor's office. There's also HiB, which is the one that's included in the 5-in-1 and 6-in-1, but I'm not sure if it's available as a standalone, so you may need to check.