I decided on the Guten after seeing both the Robobrew3 and it in person - the build of the Guten looked better to me and as I think I've said before
the programming options seemed to make better sense.
The only thing I dislike about the Guten is that pissy little bazooka - that's going to be replaced very quickly.
My first mods - even before actually using it for a while will be:
Replace bazooka with a helix.
Replace the SS pump return pipe with a "sight tube" eg. silicon tube with measured fluid marks on it so I can see my volumes when the pump is off.
oops edit: And of course make a jacket for it.
The chiller? if I do use one, I'll use my homemade copper one as it fits and has way more surface area than the one supplied with the unit.
I'm not sold on the inlet filter idea - could cause more problems than it solves.
As for the recirc arm/lid issue mentioned before - I don't personally see it as a problem, but if it is - this might fix it
https://www.kegland.com.au/robobrew-gen3-recirculation-pipe-assembly-camlock-upgrade.html
If the switches cause a problem, I'm sure they can be replaced with more robust ones fairly easily.
The whirlpool upgrade... is that the one that requires drilling a hole and rerouting the pump - or is there an off the shelf mod?
If it involves butchering the unit I'll wait and see if I need it.