Wedding slideshow?

I had several wedding shoots done and now I think about making a slideshow with the photos to send along with the pictures to my clients as a small gift. I think this may be nice for a word of mouth in the future and it won't take much of my time, haha
I am not a pro in this sphere so I found a program with wedding slideshow ideas and templates, here is it- https://smartshow-software.com/best-wedding-slideshow.php that looks okay. What do you think about it? Wouldn't it be a little too much or is it okay and the clients would love it?