It's always good to produce with both good reference cans as well as good studio monitors. In fact, it is best to do so, as every setup sounds different, and, indeed, one reference will be different from another.
It's not good to always use one or the other when monitoring. It is good to use a combination of both proper monitors, and reference cans. Switch between the two when producing, and listening to your mix.
So do invest in proper studio monitors, they will help your productions sound better on any system in the end, once mastered and released.