The flash, included umbrella bracket, battery and charger, the fitted case are all top quality.
I have both the canon x1t-c and olympus x1t-o godox transmitters. TTL works like a charm with my canon and olympus camera using the x1t-c and x1t-o transmitter respectively. So if you have two different systems, you only need to spend money on this one flash and the relevant transmitters.
I would also recommend getting the godox s2 type bracket to hold bowens type softboxes.
BTW, I visited the store and the service from this company is very polite and awesome.