Ordered a custom coloured unit late in the summer that arrived in early October. Break in process took a bit and I would say the over-the-head movements with the arms still isn't great ( basically any time biceps get near the ears there's a lot of resistance). But as far as flexibility during game situations, it's been perfect since week 2. I don't find myself contorting my arms in weird positions, so if you're mechanically sound with how you move your arms and hands, flexibility shouldn't be an issue.
I don't use the rib pillows because it just doesn't feel comfortable in any configuration, tucked or untucked. Just doesn't have that "wrap around the waist" feel with them in and it pushes the whole belly outwards. Downside is that you do feel more of the impact on shots to that area because without the pillows, the rib area is comparatively thin - I've been hit twice there while RVH'ing the blocker side. Doesn't hurt, but does wind you a little.
Frontal area coverage and protection is perfect. Would say it's a great balance of being aware of where the puck hits you, but protective enough to be 100% confident in protection. Also does a great job of deadening the puck - puck doesn't really bounce off much creating bad rebounds.
Only thing I'm still trying to work out is the sizing. I ordered size small, and I am looking into shortening the belly by another 2-3". Due to the current length, the chest pushes against the pants/jock area when I get into a loaded stance, which in turn pushes the chest upwards.
My previous chest is a custom Pro pack Passau.