MmmBeer
Brewer
The Robobrew along with various other similar rebadged Chinese systems are aimed at the budget end of the 'all in one' market, whereas the Grainfather is mid market.
The main functional advantages of the GF are the counter flow chiller (as opposed to the RB's immersion chiller) and the Connect control box, with bluetooth connectivity, which allows you to build a recipe online, then send it to your GF via your phone or tablet, the controller is also mounted in a more convenient position than the RB's which is 3 inches off the ground. The GF also has good support service, with tips, advice and recipes, I also think it is aesthetically a nicer looking unit.
The RB has carrying handles and a false bottom, which the GF lacks.
I have been a Grainfather owner for two years, so I'm not totally unbiased. Owners of both systems do recommend their units, which to me says that both are good.
The main functional advantages of the GF are the counter flow chiller (as opposed to the RB's immersion chiller) and the Connect control box, with bluetooth connectivity, which allows you to build a recipe online, then send it to your GF via your phone or tablet, the controller is also mounted in a more convenient position than the RB's which is 3 inches off the ground. The GF also has good support service, with tips, advice and recipes, I also think it is aesthetically a nicer looking unit.
The RB has carrying handles and a false bottom, which the GF lacks.
I have been a Grainfather owner for two years, so I'm not totally unbiased. Owners of both systems do recommend their units, which to me says that both are good.