Check if your device is rooted or half rooted, by classic and abstract methods, very fast and accurate, with no lots of senseless additional info displaying. Able to work correctly on any Android version.
The last feature added is the temporary root/un-root button. Just in case that you cannot root back your device, root it in the classic way (Odin/CW). There should not be any problem with this new feature, but as always 1 in a million will find a way to screw up things, so this would be a caution warning.