Stick with the choice you've made - for the reasons you've stated. If it feels right for you, then it is.
They are both fine training microlights, but personally I prefer the Eurostar. Yes it is a bit harder to master, but that makes it even more fun and satisfying. The C42 is the nearest thing in micro terms to a Cessna (and I don't mean that as a compliment).
Once you're trained you will find changing to a slightly different control arrangement (ie centre stick) no problem at all.