Just Acceptable
I grew up in Northern California where Thai restaurants are quite common. I've long considered Thai food to be the best food on the planet, and if I had to eat one cuisine for the rest of my life it would be Thai. I've also visited Thailand twice this year, sampling many restaurants and dishes.
Thai Orchid is just okay. I do go there often, but it's more because a lack of other alternatives for acceptable Thai food (Khaosan in Hongdae is the poorest excuse for Thai cuisine ever). Their "pad thai" never seems fresh and lacks in the quantity of vegetables. You can order it with just tofu for ~$8 (never seen that in Thailand), but if you get it with shrimp it will cost ~$12--and you'll only get 4 shrimp. That's pathetic. Their "Tom Kha Guy" soup is nice, but I prefer it without the chicken (Tom Kha Hetch) so as to get more mushrooms. Their mango and sticky rice desert also tastes like they've used canned mango as well. However, their curries are quite good.
The service is attentive and mostly Thai. The ambience is lacking in comparison to American Thai restaurants, but a huge improvement over Thailand restaurants. The prices are a bit high for Thai food, but heck, I'm used to paying $2 per plate in Thailand (and that's the "high" tourist price).
I can recommend it if you want to eat Thai food, but if this is "the best" Thai food you've ever had--then you've not experienced how good Thai food can really be.