The various "lomo" cameras are a lot of fun. I've been using Dianas/Holgas, off and on, for over 30 years. They have few controls, can be erratic, but give a unique look to images. There are a lot of people who will belittle their use, but they can produce art.
That being said, it seems like you're new to film. I think you'd be better served by getting complete control over your technique with your SLR before venturing into the world of "lomo".
This was done with a Diana, toned in sepia then gold: