The atari emulation avalible is really good. and afaik GWEM even coded maxymizer in Steem (correct me if im wrong gwem but this is what ive heard) so composing on real hardware, atleast if you use mym, would in this particular case be like forcing yourself to use a wheelchair when you are not disabled.  imho.

well, its not 100% coded on steem, but maybe 80%. some of the falcon and ct60 specific stuff needed real hardware, and steem doesn't have features like microwire etc. ultimately you always need to test on the real stuff, because even a nice emu like steem isn't perfect