"Is it easy to learn?" I don't know what training is provided with version 6, but MB 5 came with a bunch of material, including a selection of video tutorials from 3DBuzz, which are excellent. You should try to get hold of the 3DBuzz videos from www.3dbuzz.com There was a tutorial that covered taking a Poser character into MB, but I don't recall if that was on the Kaydara website, or if Alias transferred it when they bought MB. You'll need to spend a little time setting up your characters' bones to work in Motionbuilder, but it's not difficult if you follow logically what needs to be done. Once you set up, for example, a skeleton for Vicky, you will be able to save that as a motionbuilder character and reuse it to apply whatever motion you want to Vicky. Of course, if Curious Labs were to implement FBX support in Poser 6, that would open up a lot of possibilities.