GREAT! I have tested the program and it seems to work flawless for now. Things I like are:

*I'm hosting many clan related matches, now I can run both JJ2 and Carrotade in 1 click.
*I haven't really bothered using 1.23+ until now.

And is there something added that causes the connection to work properly? I've noticed that I can both host and join via Jazz2+.exe without running anything with jj2udp.exe, as I always had to use that program otherwise no online play worked at all..