1) First of all, they use a completely different hash. This means they can't count on the current btc/bch miners to switch mining this coin. Sha256 asics can't mine X11.
2) Then, "reply protection". Due to 1), a transaction on one chain _cannot_ be duplicated on the second chain, for the hashing algo being different. What's this "reply protection" for then?
3) block size 4MB, block generation time 2.5 min, complexity adjustement every generated block: these have noting in common with the "old" segwit2x proposal. These are not simple adjustments, but radical changes.
4) developement process unclear: where are the papers talking about the changes, where they were discussed, where are the developer's public mailing lists and the source code git repositories for public review?
So, it is clear this is not a "hard fork", but a brand new altcoin, not community-driven. Nothing bad so far, except the name "segwit2x".
Sorry but the suspect this name was chosen for gaining popularity (or other purposes) is heavy.
I wonder what this coin has actually to do with segwit2x futures: these futures were issued on a proposed btc hard fork, now they seem to be "redirected" to another altcoin which has in common with the failed HF only...the name.
be attentive please, I wrote that we will add github in the end of this week.