We stayed at Sivatel at the height of the flooding crisis in Bangkok (nope, the area around the hotel did not flood), and the stay made us forget there was a sense of panic in the city. This hotel really is a great, calm and peaceful haven in the center of the city. Indeed, even if the hotel is within the busy business district, you can have some much needed peace and quiet in your room - it actually feels like you are in a very private residence.
Service was great and very friendly. Staff know you and recognize you (it is a new hotel so staff are giving extra effort all the time) and are very eager to please. Five stars on their service here especially the guys on the lobby who call your taxi for you.
We always like check-in in upper floors, and for what is a mixed-use building, guests will check in in the eighteenth floor. Great check-in area, and service too.
The rooms are something else - they have huge rooms. I understand most rooms are suites so you can have a very large living and working area separate from your room. We liked the glass panels that make the room even more airy - you can even see through the bathroom if you didn't pull the blinds down. Quite romantic, actually. Great views of the city too:)
The pool has an excellent view although it might not be so private with the office building next to the hotel. But you wouldn't mind it, especially because of the view. The place where they have their breakfast next to the pool felt quiet, private and exclusive. We also tried the Asian restaurant in the second floor and prices there were very reasonable. Great simple food too!
Of course, we loved the apple TV and the free wifi. Everything worked although the TV got a bit of getting used to. The staff though were all too pleased to do an orientation of how to work the TV. Great to do Facebook on tv though:)
Other great things:
The bathroom and walk in closet were great. Wife liked the toiletries since it's supposed to be an exclusive brand. Toiletries were not cheap, in short.
It's priced higher than hotels of it's class, especially since Sivatel is in the middle of the business district of Sukhumvit. The experience made it a great value for money. Will stay here again next time. Hope I get the same personal level of service we got here.
Things to improve
No iron in the room. One has to request for it, and hope you get a steam iron.
It is a new hotel so most taxis wouldn't know the hotel. Bring along a map or say British embassy (across) or Swiss embassy (beside it)