Jamjuli is by far my most frequented 'I'm not cooking tonight' restaurant. I've never sat down for a meal here, but the decor is simple and calming. I live around the corner so I always just order takeout or delivery, either way it's always still good and warm by the time I sit down. All the staff members I've talked to have been very sweet and friendly.
I should mention that I know NOTHING about authentic thai food, but good food is good food, and Jamuli is great. It's tasty, semi-fatty but not greasy. The flavors are fresh and clean and you can look at your dish and identify every ingredient (as oppose to some of the area chinese food restaurants for instance). Some of the dishes seem to be inspired by other cultures, like India, and I love that, like the curry puffs (a great appetizer). A few of my regulars are mee grob, pad thai, and the veggie curry (not very spicy, lots of coconut milk, yum!). I'd definitely recommend checking it out