GNU Taler

I wasn't able to find any previous posts on the GNU Taler project here so I figured the least I could do is mention it. It's an open source, taxable, anonymous payment system that does not use a blockchain. Its development is currently in alpha but their ETA is supposedly within 2017.

IIRC it's not a cryptocurrency by definition so, if this topic does not belong here, please let me know

Any thoughts on the project?