how many years you were on dutasteride
-I am at my one year mark
progress (includes maintaining), 
The crown did maintain during this time , with some improvement.
Not really sure about the progress  because I didn't take good enough pics  
 
Both pics were taken with the same cam and same flash , but on the newer pic my hair texture seems different ...I guess due to aggressive combing  or greasyness.
The front shedded quite a bit at the 6month mark ,  similar to slartibartfast's story
but is slowly recovering to baseline 
(I started to use minoxidil at the 10 month mark , just on a small spot at the right temple to compare it to the other) 
dosage (.5 daily? 5. EOD, weekly, 2.5 etc...) 
0.5 daily the whole time , no variations at all
age when started 
- 27
Norwood-Hamilton pattern before you started
- NW2 diffuse receding at the front , V shape and with added diffusing behind hairline
- whole crown area thinning , scalp started to show at the center ,  see picture.
Overall feeling: Positive or Negative?
Not quite sure yet , on one hand the crown seems positive to me , but on the other  I  will have to wait a couple months and have a close eye at my front . 
-
Side Affects (if applicable)
I did not notice any side effects at all , everything stayed exactly the same
No libido change , no hyperandrogenity signs whatsoever
(and I'm using pharmacy bought Avodart , quite sure I'm not using fakes)
Additional treatments you were using during this time
On the Crown none.
(But I started to use minoxidil at the 10 month mark , just on a small spot at the right temple to compare it to the other , don't have any pics of my hairline though)