Ergo baby carrier?

I was just looking for some opinions on the ergo baby carrier. I'm thinking of getting one cuz I've tried a bunch of slings and the run of the mill cheaper malmart ones like fisher-price and evenflow. I'm rather top heavy already and have had issues with almost every carrier I've tried hurting my back in the shoulder neck area and consequently I can't wear them for more than 30 min. before it hurts. I also want to be able to wear baby on my back which is not a feature of a lot of carriers. I've read good things so far about this one but I'm not sure if it's just the seller publishing mostly good things of if the carrier really is that spectacular. I'm getting ready to spend a lot of money on the right carrier but I don't want to buy eight different ones to find the one that actually works.
Any comments on this one or another that you'd recommend would be awesome.

i have one   Havent tried it out yet because Korben is only 2 weeks old... but it looks awesome.