That template looks incredibly unstable
The jig is rock solid. If you are using 3/4” material it sits flat and held in place with clamps in your table. If you use thicker material you just add shims to adjust to your material size, then clamp to table.
I purchased the jig and used it once, I found it to be a little frustrating to set it up the first time, but after that I just leave it put together to help save time. I am hoping that by watching some UA-cam university I will be able to learn a little and make this thing work like it should. it is a great idea and looks really good for a jig.
I found it frustrating setting it up at first too. I also left mine together. The jig works as advertised. I have no issues with it. Thanks for the comment.