Hello,
I think that the development of such strobe is interesting, but quite late for me. Last year I decided to use mainly one kind of strobes and triggers, and I chose Godox. So my main strobes and flashes are now Godox (AD360, AD200 & V850). I use only manual strobes and a main P-TTL flash for fill when needed. I'm selling my old triggers and flashes.
Godox developed recently the new XPro trigger that allows to control groups easily, so now finally I have a solution to control power remotely and control groups, enable/disable strobes... all on the same device. I'll buy this trigger soon to check if it works with my camera, but I'm sure it will work.
I'll keep my V6II for HSS and maybe got a RF60X too, to use as my main (P-TTL) flash... or just because it seems so nice with all these buttons and its 1.9s recycle time.
I was thinking seriously to use a manual flash on camera for fill, either the RF60X or the V850II (with its Lithium battery). My Metz AF48 is still fine, and recharges in about 4s after a full flash, that is near the specifications. But when I need to fire quickly several times it starts to suffer. My V850 is way superior if you just need power and fire quickly.
About the AD200, in my opinion is a great strobe, so portable, powerfull enough. It's my main strobe now.
Cactus strobe may be better, maybe not, maybe you can control X-TTL from a Pentax camera, maybe not. I have NOW my AD200 and is a great strobe.
Anyway, choose what was better for your needs and enjoy it
Regards.