There are so many that are supposedly great for nursing, but reading the reviews, in real life many of them don't work well. The wrap ones look so fiddley and potentially hot, and the up front traditional ones look so awkward with baby feeding upright. I used to have a ring sling one and the ring always slipped back onto my collar bone, very painful. Which one have you used/will you use? Moby, Kari-me, Ergo, a ring sling, traditional front ones, any others....?