I've used a fair number of different stereo cameras, Realist, Revere 33, Richard Verascope F40, Leica Stemar and Nimslo. Stereography is a bit of work, you have to be able to patiently align and mount the chromes or use software that takes a bit of learning to use. Being the sort of person who is hyper organized and neat really helps. Of course I'm far from that so it sometimes is a struggle. My advice is to set yourself up from the beginning with a good work flow and organized storage. The Holga is probably pretty fun. A quick way to stereographic images without a big outlay of money.