There is currently no progress on connecting to Coldbird, since i can't use port forwarding, nor put my computer in the DMZ, nor use UPnP, and whatever, it's not implemented yet, so just forget about connecting to Coldbird for now.
I've looked at the code that needs to be ported, but i must admit i don't understand held of it yet, so... Since IgorCalabria hasn't given any news, we can say it's not progressing that much ^^' I just want to remember you he was the one that ported this from AEmu code, not me. I just corrected it and made it work for windows (and a few improvements), but don't rely on me for bringing the other functions needed yet, i don't have the time to delve into this code, and learn how to program that kind of things.
There is no need to compare to JCPSP, it uses a different method to connect 2 emulators, and runs only locally, while PPSSPP adhoc is based on proOnline stuff, which, when finished, will enable us to connect to everyone on this server. Maybe one day both method will be implemented, but for now, it's only locally WITH a server.
That said, if you're reporting games that don't work, it may just be because the code isn't finished yet. Try your connection setup with MHFU with works perfectly, and then try other games.