I skipped the original aluminum Monster mainly due to fear of slipperiness. I've had issues with other aluminum pens and I seem to recall multiple reviewers mentioning such with the aluminum Monster. I heard no such complaints for the stone washed titanium one so I eventually went for it. I'm glad I did!
The large broad nib is silky smooth, the matte finish comfortably grippy, the vacuum filling system well made and the ink capacity very impressive. The body is nice and thick and feels suitably hefty. I also like the look of the matte finish. Matte doesn't seem to be quite as common in fountain pens as all kinds of shiny finishes (which can obviously be great too!) so it's nice whenever it's an option.
I'm not used to pens without any kind of roll stop but at least on my shall we say busy desk the Monster is quite safe from falling. I'm not sure if the Ultem in this one is supposed to be sturdier than the acrylic in some other versions or not but better be safe in any case.
Shipping was quick and secure and included a traditional handwritten letter from Emy. Thank you!