Prior to their purchase, I recall my dad spending some time trying to persuade my headmistress that the RM Nimbus was a bad choice and we should have "real PCs" in school instead. Unfortunately it turned out the powers that be had a contract with RM and the choice of machine was basically forced upon schools.

With that said, beyond the odd software incompatibilities, I found it an interesting system. Its BASIC was pretty good and it had a music chip integrated at a time when almost no machines had sound cards.

Anyone else remember "TRAINS"? :-D https://www.youtube.com/watch?v=cvwoPUqDCa4