The griffin folio case for the iPad is very good for protecting tablet against from light impacts that might cause scratches and possible damage to the screen and the back casing. The iPad slots into four straps located in each corner of the case meaning that the unit can be used while in the case unobstructed. However I have found that over time if the iPad is taken in and out of the case the straps begin to get a little slack which sometimes leads me to wonder how secure my iPad is.
The case shuts around the iPad like a book protecting the entire tablet and is kept shut by a strap attached to the back of the case that folds around the open side into a loop that is on the front of the case. I personally not keen on this as I have often found that the strap slips out, really a fastener like a press stud would of been better.
I do believe that putting your iPad into the griffin case means that it does not stand out, many people at a glance would not recognise what it is therefore making it less noticeable to thieves.
I have a confession to make as I thought this case was quite pricey even on offer at £25 in all honesty the only reason I brought it was to protect my iPad before I could get some screen protectors.