I've been to numerous Best Western Hotels in Asia and the States and this is the WORST.
Booked on hotels.com for 2 hours before arrival, the hotel couldn't retrieve the booking at their system. It took me 10 minutes to go through the registration and the receptionists are not helpful at all.
Getting into the room, there is no bath tub as stated on hotel's description. The bathroom has no toothbrush as well.
TV channels are not complete as listed and sometimes the screens are blurry.
When I was trying to get to the gym at rooftop, the air conditioners are not on. The room is that hot as sauna. One of the A/C units is out of order and it took 15 minutes to cool the whole room.
Phaya Thai is the nearest BTS station and airport link terminus. Yet, you can only walk to the station from the hotel by passing a residential car park which connects the broken lanes between them. The car park opens until 10pm so expect you have to walk a LONG WAY back to hotel via BTS stations (Phaya Thai and Ratchathewi) at night by passing main roads instead.
Above all. Don't get too tempted by the price tag. Some hostels might be even better than this hotel