The hotel itself is located perfectly to the train station with the entrances directly next to it, for the convince coming or going from the bullet train or going to the airport it's easy and convenient but that's also it.
The staff is both friendly and skilled so no complaints whatsoever.
However the facilities in total does not qualify for a 4 star hotel, the shower kept scolding us because it switched from lukewarm to scolding hot, so showering together was impossible since there was no space and no warning before it changed (reported to reception).
Towards the roundabout in the room we had, we could hear the honking cars the whole night together with all the noises from outside (you would expect the windows facing the outer side to be more soundproof but it was definitely not, and the AC and electrical system was literally living it's own life?????, You could turn on and off the same light sometimes from one button and sometimes not (or not even at all!?) but sometimes it was also a completely different button?. sometimes the rooms electricity and AC just died and during our last night it decided to go into "eco" mode (or barely work at all mode) during the night so the facilities are not up to code for a 4 star hotel.