Little bit less deep in decoding of JT65, this faster new mode is increasing on the bands.
Surely it is not suitable for decoding signals with levels at the QRM limit as the predecessor JT65 demonstrated but it can be a valid new system to run pileup.
At present, the only software that can work with FT8 is WSJT-X that has not been as effective as JTDX in decoding the JT65.
We look forward to seeing how this new digital way will evolve!
Meanwhile, you will often find myself in FT8 in both 20m and 17m, while in the lower bands I prefer JT65 precision on weaker signals !!