I like the name Elysia but I'm woried that future DD will have a lifetime of having people mispronouning her name. I'm also concerned that she would always have to spell it out. I'm normally a fan of classic/boring names, but this one stands out to me for some reason.
you might have to correct people a bit at first but if you like the name, I would go ahead with it. I don't think it is going to be hugely difficult to get people to pronounce her name the way you want really.
Lovely name. We considered it but already have an Elizabeth and it's too close. I wanted it because it sounds like the Roman 'heaven' Ellysium and my dad, who died in April, was a guru of Roman knowledge! I would have pronounced it El-iss-ia.