I have been to Thailand and eaten at many Thai places in Vegas. Archies is not my favorite, but its not far behind. For a quick lunch, it may be the best via lunch combos. Yes its a chain, but Archies keeps the food very authentic in my opinion.
Lunch combo is $7.95 and comes with a full soup, wanton, egg roll and entree. My GF and I usually split it as its to bog for one person. The Thai Basil rocks as does the PadThai. There Thai Tea is excellent as well.
NO WIFI! I go here for lunch break and sometimes i need WIFI to make it a working lunch and keep me out of the office. That sucks but I guess they dont want people hanging around after they finish their food.