Why did you used to have a Decimo? I've been seriously thinking about buying one of these.
I ended up having two complaints with it. A minor complaint: filling it is a little disappointing with a converter. The converter capacity is not very large, and the design of the pen makes it tricky at times to actually pickup ink. Especially in an ink bottle that isn't filled to the brim. The larger complaint was that it slipped in my hands during extended use. I'm an exceptionally sweaty guy, and my hands are particularly bad. I think it was more that I wasn't a good fit for the pen than the other way around. Which is a shame, because mine was a Fine point, and I loved the way it wrote. If I'd had an easier time gripping it I would have loved the heck out of it, I think.
Hmm. Now I'm back to undecided. My primary interest is because I use EF nibs, and I've damaged two nibs so far (one cheap, one expensive) by leaving the cap off and having those pens roll off the table. My hope is that the retractable nature of the Decimo will make that less likely.
If it helps, they're also less likely to roll to begin with thanks to the fact that the pen's clip is built into the grip. Just be sure to keep an eye on it when filling if you do get it. The nib/feed/converter assembly does like to roll when not inside the pen.My hope is that the retractable nature of the Decimo will make that less likely.