Nah....it can get heavy after a long day of shopping....but other than that, I've pretty much been in love since August when I got my first Large Carly....I have two and both are amazing. That's just me though, I absolutely LOVE the style.
I have a bad shoulder (old cheerleading injury...I was always the base) and I cannot carry a Carly at all. I have to have lightweight bags...that is why I love Ergos!