I think there are a couple of Talentum reviews.
I bought one from Pam Braun this summer... red with gold trim and a medium nib. I'm very happy with it. The nib, feed, & converter took some washing to get things working well, but it writes very well now. It's very comfortable in my hand, too, even unposted.
I normally use a converter (and Diamine ink), but I carry cartridges when I travel. I like Aurora ink a lot, but I also like the fact that Parker cartridges fit this pen because they are easy to come by.
If I understand correctly, the Talentum uses the same nib and feed as the large 88 and the Optima - and they are interchangeable... so I might try to pick up a stub nib to play with, sometime, too.
I hope you enjoy yours
Bill