Sorry, i don’t know. However, the hotel is very close to the train station : i had managed my transfer by train, personnally.

I'm not sure about that coz we didn't try it. If you have small to medium luggage, there are baggage storage/lockers at the train station payable via coins. I think ¥300 for 3 hrs. The value of payment depends how long you need the locker. We did leave our luggage at the Tamachi Sapporo and they allowed us. I'm sure since its same hotel company, they can have same policy on leaving guests luggage. I hope this helps.

First you need to go to Ueno st. to take the Skyliner from Narita st.(40min). Then transfer to the Yamanote Line and get off at the Tamachi(20-30min). Have a good trip;-) 最初に成田駅から京成スカイライナーで京成上野駅に行きます(40分程度)。京成上野駅からJR上野駅までは歩いてすぐです。JR山手線か京浜東北線に乗り換え(日中の京浜東北線には快速電車があり、田町には止まらないので注意)、20-30分で田町駅に着きます。良い旅を！