There are other threads about CS and a lot of people love them. Personally, that is way too much money for me to spend on a monitor.
I have the iPad 4 mini, it's never crashed and the display size is nice, the only negative is the screen is not very bright.
You will help yourself better if you search "crystal sky" on this forum. 137 threads popped up when I did. Odd are your answers are there.
I have an iPad Air 2 (without a cellular connection) with a Mavmount holder that I used until I purchased a Crystal Sky Ultra for $625 (using coupons). The Crystal Sky has a fantastic display that is viewable in the brightest sunlight, which is necessary if you try to tap on those small blue circles trying to unlock an authorization zone in dji Go 4. (I can’t even see the circles on my iPad.) But the Crystal Sky is inferior to my iPad in almost every other respect.