This case is pretty good for what it does. It is in two pieces one for the tablet itself and the other for the keyboard, which by the way, some of the other cases do not. Let me list the Pro's and Con's of this case.
Completely encompasses the tablet giving it some drop protection and great scratch protection with the keyboard on, specifically the beautiful magnesium alloy on the Surface Pro 4 and the screen.
Once you get used to it, I think it looks pretty cool.
Grip is great on it you never feel like you are loosing it.
All the ports are accessible.
There are built in vent holes to allow the fans air access.
Easy install onto the tablet, though the keyboard is an interesting challenge.
It allows the magnets holding the pen to the side to work, but the grip is not as tight and it is easier to fall off than ever, a simple grip across the top is what I think they should have done.
It does not grip as well onto the Surface Pro 4 if a screen protector is used, though that makes sense to me but I prefer a screen protector on tablets.
The mechanism to use the kickstand is a little more challenging to use, and while it is using it, it allows the bottom of the device to tough whatever is below it. This seems like an interesting design challenge for case makers, but I think a duplicate kickstand on the case would be cool. But makers like urban armor give awkward kickstands and as long as this case does not damage the built in keyboard I think it will work just fine once I get used to it.
The last con is cost this case is very expensive.
In closing this is a great case if your looking for protection and unlike some of the competition it allows vent access which is an absolute must with these powerful tablets (though the core m model this is not important). Though it is expensive you can justify the cost if you think it does include two cases one for the keyboard and one for the tablet. Overall I am keeping this tablet case and will update this review to add wear and tear over time.