I've been using Godox flashes for a few years now - the V1C, AD200 Pro plus the AD600BM - and all work great, especially color accuracy and power output. As far as build quality goes, they are very well built. The biggest flaw that I can see they have is the awkward way to update firmware, plus with the older models like the AD600 BM you have to use Godox_G1 app which is difficult to connect to the device from a Windows PC (the G2 app works better). Sure, like many Chinese knock-offs (remember when we all used Yongnuo instead of the EX580's) they are a cheaper alternative...and that is the point of them, especially for multiple flash setups.
I use the V1C with a dome diffuser (AK-R11) when using it as 'on-camera' flash and it works well. The 76 watt/sec power output is great. However, having used the slightly more expensive AD 200 Pro with several accessories, including softboxes and the bare bulb attachment, you can create omni-directional soft light that looks more natural.
Anyone that is on a budget and is looking for cheaper flash units that can also be used outdoors, then I would suggest looking at the bigger units like the 600 W/s manual only AD600BM, as it cost me only 1.5x price of the V1C and only 20 percent more than the AD200. This is where Godox shines...you save more money when you trade up to their more powerful offerings.