It's a pretty neat instrument, but hard to find and expensive in America.
I've never held one, but I would say that it more closely resembles a conical clarinet than a saxophone, specifically due to the Albert-esque key system, which is different enough from the standard saxophone key system.
I have played in a band at UCLA (on contra-alto), which specialized in the most obscure instruments possible; we never had a taragato in our group.
I would very much like to own one, but I don't play enough and am not that dedicated of a collector (anymore) to justify it.
In America, on the rare occassions it's played, it appears to be played more like a saxophone in terms of play style. It also has a more soprano-sax-ish tone to it, but a clarinet timbre, if that makes sense.
Here's a nice relaxing jazz session:
https://www.youtube.com/watch?v=XQpG4ynzbzA