I use the Grobag brand and Snugtime in winter when it is important to have good quality to keep them warm but having said that, I know people swear by the Grobags but they are SO expensive and I don't think they are that justified. Yes they are nice material and have a TOG rating, but so do cheaper ones like Snugtime that are gorgeous fabric and warm as well. I got my Snugtime ones from DJ's and they are about $45 for winter and are great! I got given Grobags for my baby shower and like them but wouldn't buy them myself. Izzy has been in a bag since 8 weeks old so we have a few around! We use sleeveless all year round so that she doesn't overheat, even in winter, and for summer, I have lovely soft cotton ones at Target and Big W. As long as they are 100% cotton and the zips/snaps are secure I don't see the point in spending $80 especially for summer ones that are light fabric. I also have an Uh-Oh one for summer which is nice and light. One thing I look for as well, is that we don't use ones that have a seatbelt hole most of the time unless we are going out - she would get her little feet caught in there once she started moving around more. Good luck with it hun!