I was hoping for something with a little more immediacy. I've used rubber cement to repair wallpaper seams and although it does not hold up over time, the immediate result is faster and easier. The adhesive takes too long to grip. The area that I was able to put wax paper over it and then a ruler and brace that with a long dowel rod was fine. However most wallpaper seams are not easily accessible for clamping ie. bracing such as I did. So this works but it's hardly spectacular at a price of $8.10 at Amazon.
If reviewing a product, it may have been received free of charge. That will NEVER have a bearing on my recommendations.