typing everyday on an olympia monica that's built like the sm3, body of the sm4 and sm5 is the same too i think. got it for 10 euros at an apartment clearance. love the backwards thinking it triggers: you write "he goes down the stairs", then you think: no, he is crawling! then it'll say "he goes down the stairs. he is crawling" on the page instead of just switching the words on the computer. i use it for making drafts out of handwritten notes for journalism, but also for rewriting scenes and chapters, all sorts of language arts stuff. also use the woody allen method of using a staple gun to "edit" together stuff.