I think for you personally, the advice you listened to can be suited. Either Asakusa or Ueno can be your very best wager, While I've listened to Ueno is very silent during the night time so it really is preferred with people. no cost!
Individually I really feel Shibuya has a few additional items to see and do, and it's got the better nightlife, Whilst Park Resort feels a little more similar 격투기 to a quieter enterprise space, is in close proximity to Nihonbashi and Shimbashi, that are also Charming and lively at night.
Remember however, initially 7 days of April is peak time mainly because of the sakura time so prices will probably be greater than regular for many accommodations.