I used a Mei Tai when LO was tiny, and then progressed to a woven wrap and then a Rose and Rebellion soft structured carrier.
I would have liked an Ergo, but hubby told me I had enough!!
I preferred the Mei Tai when he was little and loved the Soft Structured Carrier (SSC) one when he was older and wanted to go on my back - The SSC has buckles rather than ties, so you pretty much pop them in and clip it up!
I used them because they are better for babys posture than the Bjorn type carriers that everyone seems to buy. A proper wrap/sling/carrier is more like a seat for baby to sit in. A bjorn style puts all the pressure on the crotch area - they are known as 'crotch danglers' for that reason!
They are very easy to use and there are plenty of how to videos on you tube!
Fashion shouldn't matter - babys comfort should be more important - BUT, some of the designs on the wraps are phenomenal! (I had a tough time picking what fabric I wanted my Rose and Rebellion in!!
I started using wraps and carriers when he was tiny, and only recently stopped!
Here are some pics of my carriers! (although, I can't seem to find one of my wrap!!)
My Mei Tai
https://sphotos-a.ak.fbcdn.net/hphotos-ak-prn1/59075_425169391454_5843073_n.jpg
My Rose and Rebellion
https://sphotos-g.ak.fbcdn.net/hphotos-ak-frc1/302193_10150271765266455_1278586329_n.jpg