I agree with your points but I have always felt that my "user experience" was c- with this pen. I guess I'm just talking about smooth ink flow and really just the feel. The look of course is gorgeous. I'm biased of course. The standard black Paper-mate Flair is my choice.
I found this page while searching for these little guys. Papermate Write Bros pen (in blue) have been in my labcoat pockets since college, and I rather love them. Underrated little workhorse :) Your blog is bookmarked, take care!