it is all my LO has ever worn.
she is 7mths now and I can't see it changing for a long while.
she got bought stacks of clothes, some really expensive dresses from MIL who had wanted a girl to buy for but they are still in the wardrobe, tags on, too small.
LO is a reflux baby and for the first 3-4mths whilst it was getting under control it was so much hassle changing her, sometimes 6 times a day and I couldn't be dealing with buttons on the back, shoulders, jeans, tight tops - easier to just rip the poppers (at least that way it didn't get chance to soak the vest under it).
you can buy so many funky sleepsuits now, it isn't like just putting a baby in white pj's.
the non slip feet are great as well and the ones with folded scratch mitts.
personally I don't like babies who are trying to move about in bulky clothes like jeans it restricts their movement, just like nappy does.