I have a fondness for Siam on Lake Union and Siam on Broadway. They are owned by the same folks. It is where we really got our introduction to thai cuisine.
In the last ten years though, it has slipped some. The sauces are just a little to thick. In our last outing, the service was slow and I'm afraid the curry just a little too thick and salty.
Oh well, maybe it was just a bad day, but there are now better choices out there.