I gave the Pilot Explorer a try:
- Same feed, nib, converter system as Metro, Prera, etc. so you'll get a good functioning pen with reliable ink flow.
- Aesthetics are OK: Mediocre. Nothing special, almost bland like that of a typical ballpoint. Understated and informal, though not toyish looking. Not bad. Not great. Not much.
- Is a rather full sized pen, and larger than I expected.
- Capping/uncapping is nice and smooth
- Seems durable and good for EDC
- Section is a 1/2-hourglass-like shape I personally don't prefer. I don't prefer hourglass shape sections so keep that bias in mind. In order to hold it comfortably where I'm not forced into a more flexed pincer grasp (which I dislike) I had to hold it lower than I'd like at the skinny portion of the section closer to the nib. BUT I will say the section does contour the fingers pretty well if you like more of a Pincer grasp or hourglass shaped sections. For me it felt uncomfortable fairly quickly and grew more so fairly quickly, but please keep in mind this is preferential.
- Clip is plastic : (.... I did not like this, but the clip didn't seem bad, but I prefer a metal clip.
- All plastic so it's light.
- Does hold a Con70 converter.
Conclusion: I personally didn't prefer the pen and that's basically due to the section shape, which is a preferential choice, but I do think it can work for you if it suits your preferences and be a good EDC light pen. I honestly much preferred the section of the Kokuno, which unfortunately I won't use because it looks like such a child's toy.
I do use a Pilot Prera instead despite the fact that I don't like posting pens. My Prera functions beautifully and it uses the same nib, feed, and converter system, but the balance of that pen is much better IMO, and though the section is basic and not necessarily the most comfortable section I've held (most comfortable being the Ranga Davenport and Karas Kustoms Decograph), the balance of the Prera posted nestles an anchoring weight in the web of my hand in a way that substantially decreases effort needed by my fingers to hold and control the pen providing comfort for longer writing sessions with decreased hand fatigue. So I stuck with Prera.