Thanks to Johnny that was prepare his apartment for me and my friend. He is a good host, he was willing to wait us until 01:00 due to arrive at airport at 22:25.
He provide 4 alternative transportation but I choose use the airport MRT - Taipei Main Station - Taipei City Hall, exit 2 - use taxi (show his address to the driver). If you arrive before 22:00 you can use city bus and the bus stop very close to his apartment.
His room on the 3rd floor and no elevator, but for me it doesn't matter. Importantly the room is clean. As the reviews I read the japanese toilet is good. Johnny was very friendly and speak english well. He also explain SOP to use washing machine, toilet, and all we need at home. Although actually I just sleep and take a shower there.
Conclusion, the room is recommended for stay.