Okay, first of all I have been using this product for years...I did not get a sample in my Birchbox and I have not purchased through Birchbox (yet...I am still working on my original bottle, it lasts THAT long)!
It is such an amazing product though, that I had to review it...points or no points.
The smell is amazing, it does not leave my hair greasy, and I can use it before styling, after blowdrying but before my flat iron, and after the flat iron for flyaways. If this brand made ANY product that smelled like this I would buy it. The reviewer that mentioned a fabric softener is spot-on, I just want to envelop myself in this scent. I even rub my hands together like I am putting on hand lotion after I put it in my hair...feels great on the skin!