Hi everyone
Taken the beta 537 exam. 69 questions (sixty nine! More than on any exam I every taken)
Almost every topic from official topic list was covered.
Although the results will be available , at best, by the summer, I think I passed with low score (about 700) but passed.
About preparation. You should have 96 GB ram server. Also, you can deploy the stack on an Azure VM, but it can be very expensive. Remember that the stack installation and resource provider deployment processes can be very long to go, from 1 to 3 hours.
I've not deployed AzS at all. I have decided to train my mind and memorize all action sequences, firewall ports etc.

AzS operations are very intuitive and often similar to the big Azure.
I've drafted some exam guide
https://1drv.ms/w/s!AiNE8L-qZ5Pq3g6j7CgtkQazh1lb
This exam can be used to achieve MSCE or MCSA Cloud. And because the product by itself is too raw for now and there are a few things to do - It is much easier to pass that exam than 70-744, 70-535, 533, 745 et cetera.