Baby Hip-carrier: Anyone used one?

[Melody7]

Has anyone got a dedicated hip baby carrier?

I'm an avid baby wearer and my DS has lived in a Hug-a-Bub and now an Ergo on a daily basis. However, around the house when I'm flitting between small tasks and he wants to be carried off and on, but not for a long time (ie NOT in the Ergo), I'm considering a hip carrier that sits on your hips like a bum-bag and helps you not stand with your hip jutting out (bad for your back!)

I've come accross 2 types: the Easyrider and the HippyChic seat. Has anyone used these or another type? Do you recommend them?

(I also have a ring sling, which I know people use for hip carrying, however I have neck/shoulder issues and anything that presses on 1 shoulder causes me too much pain - even weight distribution is better for me)