The closest station is Daiba station on the Yurikamome. The easiest way to get there is to take the Yamanote Line from Shinjuku to Shinbashi, transfer to the Yurikamome Line
View is better from the Odiaba side as it doesn't have fences. Not worth walking the entire length, just walk along it from from Odiaba for a few minutes to get the best view.
No tiene costo la entrada son al rededor de 30min de recorrido y además tienes unas vistas increíbles de odaiba o tokyo depende de que lado decidas caminar