I'm so glad there is a Thai restaurant only 5 minutes from my house. We had Pad See Ieew, mint basil chicken, Prik something that was pork with green beans. It was solid. The owners also own Nittaya's Kitchen which is on Rampart & Lake Mead and has a following. It's good but I also think Archie's is good as well.
I love Arawan and Lotus of Siam for Thai food. Actually, I love the food in Thailand - best papaya salad is at the outdoor festival in Chang Mai and it cost me less than a $1, served on a paper plate with a plastic fork.
So, when I say something is good or bad, it's unfortunately be compared with something else. For Las Vegas, many of the Thai restaurants are delicious. Pinkao on Lake Mead has been there forever.
Back to Block 9 - their menu is limited, but Block 9 is more like a take-out place. They have seats and tables, and the decor is industrial, but I think it is friendly. They serve alcohol. It's casual.
The prices are a few dollars more than Thai Noodle House #2 (the one on Tropicana - the only one I like of that brand), but the taste is about the same with Block 9 with a smidgeon more on the details to flavor. For example, when I want something really spicy at Thai Noodle House, they usually use chili flakes that really ruins the texture rather than using the actual Thai chilis which Block 9 does.
The spicy green bean with pork - that's called Prik something -- I don't have time to look it up for you -- but that was more like a curry flavor than what I'm used to, but it was still good. A new find for my son who usually sticks with the noodle dishes.
If you're in the neighborhood of 215 & Town Center, I'd definitely try it out. I'll be there again.