I got this pillow on recommendation when my twins were 14 weeks. We had the San Diego Bebe before that, which was great but I found that as they got older I was somewhat smothering them under my breasts as it sits higher when feeding. They now feed much more comfortably on this one and I have to say the back support is far better both in comfort and in practicality as it is fixed and with the San Diego I would have to fuss around in bed to get the support right or pillows propped up correctly. At the same cost this is better too because it can be used as a seat for the babies so you get more for your money! The only thing that you don’t get with the Twin Z is a privacy cover but unless you are really bothered then you can use a muslin over each shoulder to cover up a bit. I only used mine on the San Diego a couple of times in the first week or so.