I have this phone. Got it from China. Both sims have different IMEIs. PTA shows both sims valid. I have called/SMSed from both sims but still the status shows as valid and not PTA complaint.
And yes, no GApps. But you can download them from Xiaomi store. Google Contacts is the only app which does not sync at all. Otherwise it is fine. You can remove almost all Chinese bloatware apps but you will still find traces of Chinese.
I am not sure about souq. It could be Global.
Overall, I am very much satisfied with this phone. Only thing missing is a headphone jack