Moving to Lightroom from Aperture

Thanks.

I want to move because I had Lightroom when I used a PC and the structures seems to make more sense to me. I have tried Aperture for over a year, but never really got on with it, hence wanting to move back.

And hence my question as I have a blank about Aperture for some reason. I accept it is a competent piece of software, but I just don't get it like I did Lightroom!