Spice Island Tea House is a good restaurant but not amazing. I went on a Wednesday night. Because they're pretty small they can fill up fast. We got there at 6 and by 6:30 every table was taken and had gotten pretty loud. The service was quick and attentive. They were very accommodating.
I can't give this place more than three stars is because I just wasn't impressed by their food. I heard the pad thai was good but it just wasn't that great when I ordered it. The sauce is very sweet with not a lot of depth to it. I thought it could have used more spice or something fresh like green onions or cilantro. Nor was I impressed with their "spicy" laht nah. Its favor was really lacking.
Over Spice Island is good run of the mill thai restaurant with good prices and portions. For vegetarians out there, they are accommodating but almost everything on the menu comes with chicken and shrimp. I would go back if I were in the area but I would definitely order differently.