Appearance & Design
Judge for yourself. This is from the Edison Pen flickr stream; his photos are better than mine could come out.
Construction & Quality
Top notch. All the seams are smooth, all the threads work well, and the pen feels very solid. Not heavy. Sturdy.
Weight & Dimensions
I chose the "Pearl" based on the way it looks in the shots Brian has on his flickr account. It has a geometry very similar to Nakaya's offerings. Now, don't take this too strongly, but I'm not sure Pearl was the right shape for me. I think it's stunning when capped, but open, there's a big step from the barrel to the section. I knew it was there, nobody was deceiving me, I'm just saying I'm going to try out a different shape the next time I order a pen from him. Also, I'd probably choose a clip next time. I usually carry my pen in a pants pocket, which is why I though I wouldn't need one, but I set the pen down on tables more often that I thought about, and the Pearl rolls very well.
Other notes in this section:
Weight, inked & capped: 25g
Weight, inked & uncapped: 19g
Length capped: 5.75 inches
Length uncapped: 5.25 inches
Brian does not generally recommend posting his pens, but says that many of them will post high. Mine doesn't post securely, which is fine, but I can't talk about length posted. It's also important to note that because these pens are handmade, and from different materials, the weight and length of your Pearl may differ slightly even if you say "I want just what opus7600 got." Furthermore, Brian can alter the shape to your liking if you want it shorter, longer, pointier, what have you.
Nib & Performance
As part of the custom process, Brian asked for a writing sample to match when grinding the nib. I think the fact that I used crappy paper for that may have misled him regarding what I wanted. The first time I tried writing with the pen, I wasn't pleased. I thought it was too broad (it was a narrow medium to my eye, with the inks I preferred to use) and too wet (I thought it was a 7 out of 10 for flow). I discussed it with Brian and sent it back, along with an actual pen that writes the way I like. This time it came back perfect. The match was impeccable. He had managed to get the nib to XF-XXF, just barely toothy, and about a 4 on a scale of 10 for flow. Brian gets full marks for patience and skill.
Filling System & Maintenance
The bulb filler is fun, but a touch slow. You can cheat and just use the pen as an eyedropper if you're patience-challenged. Cleaning the pen properly requires removing the nib, which is not difficult at all. When replacing the nib, you may want to add a dab of silicone grease, which Brian included with the pen.
Cost & Value
The total on this pen was in the high $400 range, so it's not cheap. However, it's the first anything I've ever had made custom for me, and that gives me a warm feeling inside. I believe that Brian will stand behind this pen. I've already experienced some of his customer service. I definitely feel like I got my money's worth, and I'm already working with Brian to plan out the next pen I'm going to have him make.
I wholeheatedly recommend the Edison Pen company. With the caveat that if you get a Pearl, you should get it with a clip, I gladly recommend this pen.