How effective is the appointment booking system for extending a Non-Imm O visa in Thailand?

What a breeze, I've just been to Chaengwattana to extend my non-Imm O for being over 50 and used the appointment booking system for the first time.

My appointment was for 9.45, I arrived at CW at about 8.45, had a leisurely coffee and updated my bank book and got an updated xerox with today's date, went for my appointment early, about 9.20, went directly to L zone, let them know that I was there, at counter 33, was seen at 9.30 and was walking out of the building at 10.00, with passport and new year's stamp included.

I can definitely recommend using the booking system, zone L was heaving but I didn't need to worry, I sailed through.

I used the document check list and forms from files in this group.

Booking for Bangkok