I tried the Calumet branded version of the Godox Wistro AD180. Two power cables failed. I would be hesitant to recommend these units based on that. That goes for the AD360 as well--same power cables. Aside from that, these are bargains if you want barebulb flashes; your luck might be better than mine with them. Also, though I've been working with an external battery pack for a while with my Nikon flashes, I decided I didn't want the bulk anymore.
So I recently picked up a Neewer (rebranded Godox) v850. The flashes uses an internal lithium battery. It is about the size of an SB910. Fully manual, no auto settings (there is a TTL version available). Controls are simple and straightforward. The battery is amazing--it lasts and lasts. And, the unit is cheap: about $130. It also has a dedicated radio unit available so you can control an off camera flash (actually, flashes, plural) from the camera. The only downside is that there is only one remote sync port: a 2.5mm mono plug. You can find them on Amazon or via cheetahstand.com.