First question do you brew on a Gen 4 or are you reading opinions of other brewers?
Re other AIO's not having loads of complaints you are far off the mark, the Grainfather has had loads of issues in the past Silicon seals which were added because of the bottom plate not fitting correctly causing grain getting through and blocking the pump, the controller needing updates that did not always work and in fact made the other brewing matters worse.
Grainfather has ironed out those issues now and the unit performs well but it took a long to time to get there. Other AIO's suffered the same too in the first couple of years and some of it was that the manufacturers needed to adapt the systems but also the brewers needed to adapt their recipes and style too from the previous methods used.
What I am trying to say is it will take time for people to get used to the differences of any new system and you can read as much info as you want and some of it is good and helpful but some of it is lack of brewing experience and perseverance.
If you have bought one generally most people will make it work for them by adapting and understanding any quirks the machine may have.
If you read more recent owners comments you will find more and more giving better reports as they learn how to deal with the machines differences to how they have brewed before and adapted.
Do not take this as a personal attack in any way but I can only report how I find the machine and as I have said I did have some not so good brews to start with but after that no more issues than you would expect and most of them were crush issues or not using oat husks on certain recipes etc
The one big benefit of the system is it gives a better mash temperature than most systems when used with the Rapt thermometer and the brewers that complain about difference in bottom sensor and the rapt sensor temp is to be expected as with nearly all the AIO systems they are located in the wrong place near the element as you had in the previous Brewzilla model
Re other AIO's not having loads of complaints you are far off the mark, the Grainfather has had loads of issues in the past Silicon seals which were added because of the bottom plate not fitting correctly causing grain getting through and blocking the pump, the controller needing updates that did not always work and in fact made the other brewing matters worse.
Grainfather has ironed out those issues now and the unit performs well but it took a long to time to get there. Other AIO's suffered the same too in the first couple of years and some of it was that the manufacturers needed to adapt the systems but also the brewers needed to adapt their recipes and style too from the previous methods used.
What I am trying to say is it will take time for people to get used to the differences of any new system and you can read as much info as you want and some of it is good and helpful but some of it is lack of brewing experience and perseverance.
If you have bought one generally most people will make it work for them by adapting and understanding any quirks the machine may have.
If you read more recent owners comments you will find more and more giving better reports as they learn how to deal with the machines differences to how they have brewed before and adapted.
Do not take this as a personal attack in any way but I can only report how I find the machine and as I have said I did have some not so good brews to start with but after that no more issues than you would expect and most of them were crush issues or not using oat husks on certain recipes etc
The one big benefit of the system is it gives a better mash temperature than most systems when used with the Rapt thermometer and the brewers that complain about difference in bottom sensor and the rapt sensor temp is to be expected as with nearly all the AIO systems they are located in the wrong place near the element as you had in the previous Brewzilla model