My first professional backhand rubber was the Tenergy 19. The forehand was the Tenergy 05. The best table tennis-related decision I've made was the put the 19 on my forehand too.
Speed; The speed is just about the same as T05's speed (only around 5% less). You can pretty easily make the killer shots (smashes, flat hits, volleys, counterattacks) like with the T05.
Spin; The spin is slightly, but not unsignificantly higher than the T05's spin. This is thanks to the greater dwell-time the sponge provides you. Though the sponge hardness for both T19 and T05 are the same, but the T19 feels a little bit softer. Topspins, underspins and sidespins are pure quality with this rubber. The grippy topsheet does all the work for you (some at least).
Control; The control is higher than the T05's control. The T19's greater dwell-time provides you higher safety and margin for error when it comes to handling incoming spins. There is no extreme catapult effect, thus it gives you a better chance to direct the ball wherever you want to. It is spin-sensitive (because it is spinny), but not that spin-sensitive like the T05.
Anything else; This rubber has tons of feel, it is a pleasure to play with it. If you were or have been playing with T05, you'll easily adapt to the T19. It is much easier to use and utilize than T05. It is durable, it can last until 3-6 months if used properly. Only thing you should look out for is to clean it regularly and properly (only water or wet wipes, no cleaners).