This was probably one of those samples that you take when there is nothing else to choose from that you are really interested in. I am not into extra firming yet, so I think it is probably aimed at mature skin more than anything else.
Sample size was fine, it lasted three to four uses. Packaging was fine too, no complains. I did not observe anything regarding the extra-firming part. You probably need more than a sample to see any effects on your skin, but definitely nothing on first impressions. Although it states all skin types, it was a bit rich for my taste, I have oily skin, and therefore go for lighter formulas preferentially.
Would I buy it based on the sample? No