I really really really love having relatives that live in Las Vegas. Yes there are amazing restaurants on strip, but their price-tag is usually due to hype.
This place is off-off strip, delicious, and amazing. So very worthy of 5 stars. Their service is warm and friendly. Their food is delicious! I've had a plethora of things off the menu, but I adore their Pad Thai, Seafood Green Curry, and Papaya Salad. Be careful to order things on the spicy side here, because they deliver, you're entire mouth will be en fuego. You can always ask for the spiciness on the side, as I often do.
I really do believe the test of a good Thai restaurant is if the food tastes good the next day, and Archi's definitely passes.