My first impression is very positive. There may be some issues. that I am not aware of, but it seems promising.
However at this point in time, if I understand it correctly, there is only a BIP, that may eventually be agreed upon, that would allow devs further into furure to possibly maybe develop something similar to how Monero works now.
It may be the future and I hope it will be, but right now, tax evasion should imho still be reserved for tools designed for that purpose like aforementioned Monero.