The Snugli infant carrier by Evenflo was my first baby carrier purchase. I loved the thought of having my hands free while carrying my new baby. But, although the concept was a good one, I didn't like the execution.
Using the Snugli, you can carry your baby facing either inward toward you or outward. It's best to use it facing inward for infants with little or no head control. When they get a little older, you can carry them facing outward.
The Snugli is relatively comfortable, but I did not like the fact that my baby was right in front of me. So, although you are hands-free, it pretty much prohibits you from doing much else. It is also very hard to get your baby in and out of it. There are a lot of straps that have to be arranged just right or you will have fits trying to get it to work.
Overall, it is a nice little carrier for short periods of time but the problems I had with it keep me from being able to recommend it very highly. Admittedly, I have tried a few different types of carriers and never really liked any of them, because it feels so strange to not use your hands to hold your baby... so it may simply be personal preference.