On our visit to Seattle we enjoyed our food at Plum so much we went back the very next evening.
It's in a nice building with a nice interior although it seemed a bit crowded with too many tables. There's more than enough staff though so there's no waiting around. In fact, sometimes they were too fast with everything so that we got our entree when we hadn't even finished our appetizers yet and while I was still eating my entree they asked if I was done (which I was clearly not) so they could take my plate . The prices they ask for their food seems fair as it is really good, but then the service doesn't live up to that. That being said, the staff was really nice and friendly.
As for the food, everything we had was incredibly tasty; the avocado rolls as an appetizer are very good but also quite filling. Their handmade pastas are good and the burgers are also great, especially the fresh herb grilled seitan steak which comes with the yam & beet chips (which you can also order as an appetizer) served with their dill aioli, the best aioli ever! Desserts are very nice except for with every dessert we had they either were very skimpy with the scoop of ice cream it came served with (the rhubarb-plum tart with in this case 1/3 scoop of cardamom ice cream), or either they forgot an ingredient listed on the menu altogether (chocolate tart with a berry sauce, but the sauce was missing). Rhubarb-plum tart was amazing though.
But I would definitely recommend anyone to go there!
Cons: not as upscale as expected with prices, skimpy and careless with desserts