Review of the Pilot FriXion Color-Pencil-Like Erasable Gel Ink 0.7 mm Purple Pen

Got this prize from JetPens today, so it seemed like a good opportunity for a mini review and a quick visual comparison of this purple color-pencil-like erasable gel ink with some graphite leads and the violet 0.7 mm Pilot Color Eno lead.
This Pilot FriXion Color-Pencil-Like Erasable Gel Ink Pen is a comfortable smooth writing instrument that produces rich deep purple marks on the Georgia Pacific 110 lb white card stock that can still be easily erased with the cap's rubber tip thanks to its heat-sensitive ink. Its dark vivid purple stands out like a 4B lead and is considerably darker that the Eno violet 0.7 mm lead with the added advantage that erasing it does not leave behind any erasure debris.
On delicate thinner papers like this Kolo sketchbook paper, heavy application of the heat-sensitive ink can not be erased without damaging the paper as shown in this close-up. The friction required to fade heavier purple ink build up ends up ripping the paper surface apart. Yet single strokes on it and on regular 20 lb printer paper, vanish easily with just a little rubbing without visibly damaging the paper. Fun choice for taking notes and doodling, but I would not recommend using it for signing any documents or checks ;).