My experience with microcassettes hasn’t been too positive! I love the format, as my dad had a dictaphone when I was a kid that my sister and I would record rubbish onto and giggle like crazy listening back, so many fond memories. I got a similar dictaphone thinking of incorporating it into my ambient gigs, but it’s really temperamental! I’ve no idea if it’s the tapes I’ve tried using or the dictaphone but sometimes they just randomly stop and click off. I was also looking forward to recording things live at one speed, then playing them back at half speed, which a lot of these dictaphones offer, but the noise floor is really distracting for “normal” use. In contrast I’ve had nothing but relived-youth joy from full size cassettes, loops, and players.