I've never been to Thailand but Thai Touch's food certainly seems authentic. I've eaten here a number of times and their food is always very good.
I'm fond of the Pad Kee Mao and their Thai iced tee. But be warned: their food is on the spicy side. They use a 1-10 scale and I've found a 5 to be as spicy as a 10 at other restaurants. I've also sampled my friends 9 and found it to be about as hot as my 5. That's the only complaint I can make about their food.
Crazy would be a kind way of describing the atmosphere. It's just tiny and seats about 10 people at the most. In fact, 10 people would make that place feel uncomfortable. So don't plan on taking a large party.
Overall, it's a solid experience and their food is very good.