I only owned manual transmission cars my whole life. The car I drive now does not have the option of a manual transmission, so an auto box it had to be. Now, I can fully understand why autos are so popular. It is much nicer to drive, especially in peak traffic to work and back, but I must admit. I would not hesitate to swap this car for the same car in a manual transmission. Manual transmission cars are faster and use less fuel. This is true for all the same cars that comes in manual and auto (manufacturers figures)
I love to drive my auto car, BUT, yes its a very big but. I just hate it when I step on the throttle and it downshifts 2 gears. In most situations 1 gear or even nothing would have provided adequate acceleration for the situation, but every time you kick down it goes in ''racing mode''. You can step on the throttle less hard then it won't downshift, but then there is poor acceleration.
I also like to get to top gear as soon as possible. Driving downhill on a lazy Sunday with a manual transmission it is so easy, but with an auto you do need to reach a minimum speed before it changes gear.
Then, I have only a 5 speed auto box. Perhaps if it was one of the latest 8 speed auto boxes it would have worked better for me.
If you like driving and do not just use a car to go from point A to point B, then a manual is so much nicer.
But, that is just me.