There are different views to this design decisions. Yes the Save on top is very good i also think this is a big improvement.
The changes on the top right i find now after some migrations to 2.0 also very good as there is no problem as before that you miss that there are open changes. The changes where in 1.6 only visible if you are inside WATO and also there not in all places. Now i also see in the normal host or service view left top yellow circle → open changes. 
But as said there are different views for the same problem.
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