I really enjoy using the baby Rollei. If you don't mind paying $12 - $20 a roll you can still buy newly made 127 film from Film Photography Project. I'd rather do my own so I buy the bulk 46mm HP5+ that Ilford sells in their annual "odd formats" sale, and re-roll it in recycled backing paper and spools from old Efke 100 rolls of which I had many. For other films, I have a slitter you can pull a roll of 120 through, which gives you a roll of 127 and a roll of Minox sized film.
I saw yesterday (I think on RFF or Photrio) that an Instax Mini sheet fits perfectly in a baby rollei, too!