Overall a great hotel that is worth every penny of my stay.
Hanoi Oi is centrally located near the hoem kiem lake and around a 10 minute walk to Hanoi's old quarter & 5 minute walk to the French quarter.
The hotel and room are clean, newly furnished and well maintained. As for facilities in the hotel, there is a pool but for the purpose of my trip, I just wanted a clean and convenient place where I can come back to from a long day and rest comfortably, which the hotel has achieved.
The staff are very helpful - the receptionist gave me some free face masks for protection against the corona virus when she saw I didn't have any.
If I come back to Hanoi I will have no problem staying at the Hanoi Oi hotel again.