I've played a fair few rules-light games over the years and quite a lot of Holmes D&D. I'm really impressed with how Microlite 74 'feels' in play - and it's so much easier to get your head around than my OD&D PDFs.
Welcome to the forum, Sean. I'm really glad M74 worked well for you and your group -- especially as it did not receive nearly as much pre-release playtesting I would have liked. I find it a bit harder to use than OD&D, but that's probably because I started with OD&D and could run a session of it in my sleep.