The most one-dimensional aircraft in-game.
Come with alt, pick, run. If you stand and fight, you die. This simple 
Lots of people say that about the Dora, my friend. But as you have pointed out before....it all depends on who's flying it.

I use to fly the Typhoon quite a bit so here's some advice:
1.) Yes, the roll rate is bad. That being said, I've won plenty of fights in a flat scissors against some very good Dora and 47 pilots because a.) they were overconfident and didn't convert the fight to a rolling scissors when they should have, b.) a close in crossing snapshot from four hispanos will ruin anyone's day, and c.) scissors are as much about slowing down faster than your opponent as they are about roll rate...and the Typhoon slows down
fast! Just don't miss the crossing shot when you get one...you will get only one or two at most before you run out of E. Typhoon bleeds E like a hemophiliac when doing anything but going straight.
2.) As Butcher and Zach pointed out, rudder authority is very good....you must use it to help gain angles and improve roll and turn. If you seldom use rudder when flying or don't do so correctly you likely will not be very successful in the Typhoon.
2.) The Typhoon
can turn....it won't win any awards, but if you keep your speed up above 300 it will do just fine. Lead turns are very important in a Typhoon,more so than many other rides, to compensate for the average turning ability.
3.) Below 8K its one of the best fighters in the game. Speed and hitting power in one package. That being said, Typhoons need to fear two fighters below 8K:
- The LA7, which can do just about anything the Typhoon can do, only better. Long range shots (i.e. 400+ yards) being the obvious exception.
- The Spit 16 for basically the same reasons as the LA, the obvious difference being the Spitteen isn't quite as fast but is fast enough to stay with and kill you before your speed advantage can gain you separation.
4.) As others have said - Think right turns. You want to avoid going left and fighting that monster torque if at all possible. The downside to this is everyone knows you want to turn right and will, if they are smart, do everyting possible to force a fight into one that makes you turn left.