GF hotel

I can vouch for the Best Western Astina as being GF. I had Manami TMK visit me there back in early-March. The front desk didn't ask her anything and I didn't have to go to the front desk to sign her in as a guest. She was able to walk right through the lobby and knocked right on my room door.
Not sure whether to start a new thread or extend this one, but since the subject is general, I'll try to hook on.

Does anyone know if Cerulean Tower (Shibuya) is GF?

I can vouch for Tokyo Hilton (Shinjuku).
They will let her up to the room at the PHT without problems (no room key needed for the elevator, actually it is still an actual key for any room). if they ask anything then if they can help with her bag or provide other assistance.