I have one mate and love it! It is well made, extremely waterproof and very comfortable, you can adjust the sides to wear it loose or tighten up to wear it tight around the torso. The adjusters on the upper arms are good, once again loose or tight.
The collar is very comfy against the skin, does not irritate or chaff. I also find that if you get the right size, the armour stays where it should be without any movement.
I bought the dianese wave 2 back protector at the same time, it fits like a glove in the back of the jacket. Plenty of pockets and a couple of 100% waterproof once, tried and tested! The thermal liner works well in winter without overheating and sweating.
There is only a couple of points i have noticed, it is very hot if stationary in summer traffic, and if you have all the fasteners on the front done up all the way to the top, the top one pops open when doing lifesaver checks, this is not really a problem and has not prevented it keeping me dry in a downpour, might be my build which caused that!
I would thoroughly recommend this jacket to you. I couldn't find any Dianese trousers of the same material when i bought mine though, i bought another of the dianese gore-tex line and they are great as well.