I couldn't resist anymore and ended up buying a Braumeister (20l version) a while ago.
So far I'm loving it!
The main limitation is the amount of malt you can put into it. 6kg (13lbs) is maximum. Any more than that and the grain bed becomes too compact and the pump struggles.
With some sparging you can achieve 80% efficiency.
I typically brew 22 litres of 1.050-1.060 beer, that is super easy.
One example from my last batch:
5kg malt
Mashed in with 23 litres of water in the unit.
When mash was finished I sparged with 8 liters of 78 degree (C) water, (heated in another kettle) and ended up with 26 litres of 1.048 wort pre-boil (plenty room for more). 79.5% efficiency into boiler. Boiled for 90 minutes and ended up with 20.5 liters of 1.060 after loosing some to hops and trub. 78% eff. Should have sparged with 1-2 liters more.
In the German videos they don't sparge. However it's easy to do so, just pour water into the malt-pipe when it's in the "high" position for draining.
Also in the German videos and pictures the beers are cloudy. My beers are just as clear as when I was batch-sparging. The German homebrewers love Hefes and they're very anal about the Reinheitsgebot; no finings. I think that might be an explanation. The Braumeister have become very popular here in Norway and I have not yet seen any complaints about cloudy beers. And nine out of ten buyers are allready all-grain brewers with experience from a variety of setups. If beer quality went down after going to the braumeisters they wouldn't have been this popular!
If you want to use the pump to recirculate the wort while boiling or cooling, don't use whole hops or use a hop-bag. They will effectively clog the pump. Pellet hops no problem, just toss them in.
I bought two accessories; the immersion chiller and the insulating "suit". The chiller is good but not very big. Could probably have made a cheaper and more efficient one myself from some copper tubing but not as compact and clean looking.
The suit helps keep the heat in and a rolling boil with the (only) 2kw element is easily acchieved.
The best thing about the unit is the relaxed brewday. I am brewing a Wit now. Filled the Braumeister with cold water after I came home at six pm, programmed a long and complex mash-schedule, milled grain and mashed in when it beeped at 38 degrees (C) and havent touched it for a while. Now (8:40) it's fifteen minutes left of the mash and time to heat my sparge water. I'm expecting to have my wit fermenting and the kit cleaned and stowed away well before midnight. And during that time I have had plenty of time to do other stuff. Last brewday I went to the pub for a couple of pints of inspiration while the thing performed a five step mash!
The price? WAY to much if cheap beer is important. However brewing has become an important hobby and part of my life and in that context it's not too expensive!
A discussion I found in english from down under:
http://www.aussiehomebrewer.com/forum/index.php?showtopic=48664&st=0
Cheers!