I have never made a pie before, so I bought this to use as a guide to help me when rolling out the dough. So it hasnt been used yet but looking it over it has lots of information on it which will help any baker, new or old to get the most out of using this for measuring without needing a tape measure.
You will want to be careful where you store this, when I removed this from the packaging to look it over its almost like a hair and dust magnet. It is good to put on table/counter to roll out dough and not have to worry about it moving though, but not good if hair gets on side for the rolling. At $17 I think it is quite a bit for this mat, but it is quite useful so I will say it can be worth it if you do a lot of baking and measuring.