In have been patiala shahi chicken point a few times since it is nearby to my home so it is very accesible.
But the service level is very bad. The waiters don't treat politely.
If you ask them something their answer is also in an arrogant manner, it may be due to the big size of the chicken point but it doesn't provide good waitering to the customers.
An example of my experience. Last time I asked for tissues as there were none in my table and the waiter did not tell any answer when I ask again then he arrogantly said tissues are finished.
I think service has become a very important factor nowadays so I hope they improve it.