You've had a strong foundation from the start.
It's much easier to maintain a healthy relationship over time than it is to salvage it early on. Your dynamic right off the bat is usually a great indication of how your future together looks. If your relationship started off rocky, chances are that it will continue to be an ongoing battle. It's not impossible to come out of it stronger, but any early issues will work against you. But if you began with a solid foundation, things are only looking up from there.