Only managed a quick ride yesterday but love the jacket and the trousers. Nice and comfortable even with the "storm collar" on. It seem really well thought out and nicely but together.
To BRRT. I also have a Streetguard 1 suit and am delighted with it, but lately also had the problem with the knee armour so ordered the latest part from BMW. The part no. is 72 60 2 341 665. These are much softer, pliable, seem thinner and fit to the knee much better. Was so impressed I got the elbow ones as well - part 72 60 2 341 664.
Hope this helps.