Just out of interest why would you go for the Braumeister?
My thoughts are after looking at the Braumeister v Grainfather video its said the Braumeister is three times the price of the grandfather but it doesn't come out of the comparison three times better then the Grainfather when it comes to the beer they both produce.
The issue with the pump blocking on the Grainfather can be easily over come by dropping a false bottom in before the hops are added or as was mentioned putting the hops in a bag, (I would expect the they will look to address that problem as they improve the product) I can see with the timer on the Braumeister step mashing is made easy or even done for you, but on a brew day would you just want add the grain, turn on the machine and go out for 90 minutes to then come home and add some hops! I wouldn't I would want bit more to do and give a reason to keep a eye on things.
If money was no object to the decision I would definitely go for the Braumeister as it looks a good build but on a practical level the Grandfather and Brewster will produce comparable beers to the Braumeister for less outlay