Having your father's passport and your countersignatory being British probably had a lot to do with the speed of the application. Although it's not a strictly "rubber stamp" process, it's a lot easier than some of the vetting that has to be done for naturalized citizens. As I said mine was...

The online system is broken for first applications for naturalized / registered citizens. You're best to fill out form OS and send that in. I was asked to fill in my parents info despite neither of them having been British nor having a British passport. On form OS I had to fill out sections 1,2,4,9 ...

For a first passport most have had to re submit the application on paper from OS after trying an online application. I was registered as a British citizen in December and if I had sent in a paper application in the first place I probably would have had my passport in less than 2 weeks. As it stood, ...

Passport Type: Adult (First Time - Registered as a British Citizen) Method of application: Online Date of application: 17/12/2014 Awaiting information from the applicant: 18/12/2014 Declaration form received, being processed: 19/11/2014 Letter asking for a paper form OS and proof of address document...