So I had my first brewday with the braumeister on Christmas eve. It was definitely the most stress free brew day I have had. It removes all the harder work from a brewday but still leaves the enjoyable parts.
The only part of the brewday that involved a lot of work is the cleanup. The 50l unit is large so you need a lot of space to lift it, turn it upside down etc.
With the new mesh filters I did not experience any grain escaping from the malt pipe.
I crushed my grain with the default settings on the Barley crusher. I was using 49% pilsner malt, 49% wheat malt and I did not experience any of the wort fountains reported by others.
The pumps are really easy to clean. You simply unscrew the pump housing clean and replace. It is very simple to do and I will be doing this every time I brew.
I use leaf hops when brewing - however I think in future I will use some sort of hop bag (or something similar) to hold the hops. This should make clean up even faster.
As I was brewing 20L (using the 20l maltpipe) in the 50l unit i did not experience the outlet tap getting blocked when poring to the fermenter. Also I was able to remove nearly all of the liquid from the unit into the fermenter with getting lots of hops etc in the fermenter.
I think you need to do a few brews with the machine to fine tune your understanding of it and to get all of your calculations etc correct. However it is a really powerful tool and I know Im going to have lots of great brews with it.
I learned two valuable lessons from what otherwise might have been a very successful brew day:
I bought the 50l unit. I am currently brewing with the 20l malt pipe.
The instruction manual recommends filling the braumeister with 23l of water
All went fine until the pumps turned on. There was not then enough water in the unit to cover the outer heating elements.
The residue from the grain water combination which had covered the heating elements before the boil then started to heat on the elements and created a burning smell
I had to bring the total mashing water volume to 26/27l of water to completely cover the elements.
does anybody else brew with the 20l malt pipe in the 50 unit and if so do you find this a problem - or was it something I did wrong?
I did my boil with the lid completely removed from the unit. I also turned the boil temperature up to 101 degrees celcius. However this resulted in a huge boil-off rate which only left me with 15l of wort in my fermenter. Next time I think I will keep the temperature at 100 degrees and keep the lid partially over the unit. The reason I turned to 101 degrees was that I read that many people had problems getting a proper boil going at 100 degrees. However after thinking about it afterwards i realised that most people reported this problem on the 20l unit - the 50l unit contains a lot more heating elements and so should not struggle to get a boil going - pity i didn't think of this before my boil. 
I intend to do another brew over the next few days (a Nogne porter clone). I will take on board the lessons learned from brew no.1 and let you know how brew no.2 goes.