Gracie, I wore a bubzilla sling today for over 2 hours with Em before i started to get sore, i find it easy to put on having watched the video instructions on their website and it seems easy to feed in. I found it easy to give her the bottle today and she was very comfortable in it. Sarah also loves being in the sling in a hip hold. i am finding it soooo much more comfortable than my tomy freestyle cool as it doesn't did in anywhere unless it is not adjusted properly and it offers a more even pressure instead of digging in like the other ones i have tried (i have borrowed a few to find one i liked). it is comfortable to sit on the couch and cuddle and will be better when it gets a bit cooler here in adelaide as she was sweaty today.