Initially i was really impressed with this case. It's very solid and i suspect it will take a lot of abuse. I volunteer as a motorsport medic so spend most weekends in the back of a 4x4 covered in mud and oil, so this case stands up well.
The case is very heavy - felt the urge to take it out the case when back home as it really became clumsy to use day to day.
After a couple of weeks the button started causing problems, it would either not work, so could not do anything that required the button, or it would randomly trigger Siri - including in the middle of the night.
Now about 3 months in, the iPad is next to useless in the case - the button is a total mare.
The charging port is also badly deigned as the catch to open it is in the middle so rests on the charger when plugged in and puts pressure on it, which i suspect after 6 months or so will start to damage the charging cable.
All in all disappointed as the case is great, but soon becomes unworkable with the button.