Before I rate some places, just an explaination what means good and bad service for me: Good is when I get what I want and even more. Bad is when nobody is talking to me and when it is way below expactations. I usually expect more from a foreign owned restaurant because they should now better. Many times, they unfortunatly don"t.
Best service:
Joma Bakery
Pizza Company
Japan Tei (next to Novotel)
Scandinavian Bakery
Small room (crepe cafe)
Silapa
Worst service:
Nos Japanese Restaurant
Khop Chai Deu
True Coffee 23 Singha
Of course, this list isn't complete. Feel free to comment !
Between, but still a long way to go:
Ansara Hotel
Lao Garden
Dao Fa
Sabeidee Cafe