Just be aware that the rocket launches often get delayed, sometimes by a few hours, sometimes by a few days. If you go out to the coast to see it, make sure to plan other stuff in the area like the beach and lunch/dinner. That way if the launch doesn't happen you can still have a nice day and not feel like you wasted it.
For reference, you can usually see the launches really well from the Orlando area. I've even seen quite a few even from South Florida. Just make sure to find an area where you can get a good view of the horizon. Standing on a tall building really helps. Night launches are also really cool because the fire/exhaust really lights up the sky. I remember back in the days of the space shuttles the entire eastern sky would glow orange.