Aion feels great! Weighing in at 33g uninked, it is massive compared to the empty AlStar 20g or Safari 12g. Beautiful design, typical superb Lamy craft, really a cool thing to behold. Writes nicely. The F nib is not quite as fine as I like but it will do. Purchased from Endlesspens.com. The company is new in the USA mail order space. Excellent price ($49 ea plus shipping), order promptly shipped and tracked to my door, and they had the Aion about three weeks before most other suppliers. They have a nice selection of premium brands but you may not find every color/bib combination. The Aion for instance is offered only with F or M. https://imgur.com/fpngallery/k0wDNhS