We mistakenly believed that this restaurant would be empty at 5:15 on a weekday. It was anything but. Luckily, they were able to get a table for two within five minutes. They've managed to fit quite a lot of people in the space that they have.
I ordered the khao soi, while my friend ordered the pad gra prow. I was starving before my meal, but was quite full within ten minutes. The curry is quite filling by the end. It was a little spicier than I anticipated, but I have very little tolerance, so it probably would be fine for most people.
Like many others, I was impressed by the service. I've eaten at many other restaurants a lot emptier than Pai with much less attentive employees. Kudos to the servers for making sure all customers were taken care of. I think this practice also ensures that people are in and out within an hour or so. Would definitely return if I was ever craving Thai food.