Anyone use SketchUp before?

Has anyone use SketchUp before? I was looking at it and it seem really nice and easy to use. I was wondering if anyone else used to make models and import them into panda before? If so, what will I be looking forward to in trying to do that?

Also, is there any other 3d software out there where I can make models and world locations that is easy to use/has a easy learning curve to it? Mainly one that can do collision stuff also. Collision seems to be what takes me forever import models from one program to another =/

You can export from SketchUp to Panda3D by exporting to COLLADA (.dae) and then using dae2egg to convert that to Panda.