hi @my2coins this is my first time ever hearing about the STeX.Exchange and I really don't understand very much about it.

However, after a cursory review of the ANN thread ([ANN][STEX.Exchange]1-st Exchange 3.0 Aggregator to trade all coins in one place) over at bitcointalk.org it appears that most everyone over there has positives things to say about STeX.

I also looked up Nickolay Prays' Github

I can't really offer a personal opinion regarding the STeX.Exchange but I will post a thread over at the Bitcoin forum (forum.bitcoin.com) asking others there if they have any thoughts regarding STeX.