i'v never had any experience with it personally, but i probably would get it.
if you are looking for actual good photo's and good panorama's, i wouldnt.
if you are looking for experimenting and getting cool fun photo's, but not serious or perfect, then i would.
if you do get it, here is the camera+film for a cheap price, and remember to send the film TO LOMOGRAPHY.COM'S FILM SERVICES TO GET THE PANORAMA.
also in the link is a bunch of examples!
http://usa.shop.lomography.com/cameras/spinner-360