I would also recommend using it. I have had excellent results.
It will NOT however, protect a backglass from extended or extreme cold temps as some may believe.
I had 3 sealed glasses peel in sheets when i left them on my unheated shop during a cold snap.
It does lock down lifting graphics. There are plenty of tricks to get the most out if it.
I look at as a failing glass anyway so if i can save it to some degree it is a plus.
I do not seal all glasses, only those that are failing.