We like this place. We have been there a number of times whenever we visit from San Antonio, Texas. In San Antonio, we go to Pasha's regularly.
Here are some differences. Paymon's has much more atmosphere. but, the food is generally better in Pasha's. In Pashas, as soon as you sit down, you are served with a free 10 inch round hot fresh naan bread along with a saucer of olive oil containing spices. And they replace it often, all complementary.
Paymons give small pieces of dry cold triangles of pita bread.
We would tell Pashas to improve their atmosphere, and tell Paymons to consider serving the fresh hot naan bread.