So far the oven has seemed to be calculated correctly.  I always have a thermometer kept in my ovens because of their irregularity, but this one seems to be right on.
The range top was a little difficult to get use to.  I would keep burning my food because the bruners were higher than what I had in the past.  I found I couldn't go by the numbers 9-1 but needed to realize that medium was going to be at about 2.5-3.  Not much visible difference between 9,8,7,6,5,&4.  This was the case for all the burners except the simmer one in the back left.  Now that I know this though I have much less difficulity operating the range. 
The biggest negative is that it doesn't come with a physical manuel.  Everything is online.  For a physical copy I would have to print it my self and I don't own a printer.