I am enjoying my Pilot Rollerball. I use Pilot G2 refills in it. It's a good looking combination and the writing feel is excellent. Fountain pens just don't work well for me when it comes to grading middle school essays and tests.
I wrote this in a softcover Piccadilly notebook while it was sitting in my lap. I didn't notice how sloppy the handwriting was until I took a picture. Oh well. I'm an enthusiast, not a perfectionist.