NTT or Sakura for a new small business?

Opening a small business in Nagano and trying to find the best Wifi option. We were with NTT last year in our previous place but the quote we've been given for the new location is considerably higher. Alternatively, the Sakura mobile home wifi option looks a lot cheaper, and uses 5G which we have in our area.

Does anyone have any experience with either service, information that might help or any sneaky anecdotal things to watch out for?

Much appreciated in advance!

by ElusiveCucumber000