I have to say 17 isn't a brand I ever consider buying, it just gets overlooked with all the choice out there. I got this as a free gift or from running up in a competition last year and was actually surprised by how impressed I was with it.
In the past I've often favoured mroe of the 'false lash effect' type mascaras, but I really enjoyed this one. It wasn't as obvious a difference to my lashes as those ones are, especially as I have it in brown (I usually go straight for black). But it gives a nice slightly more natural look (or as natural as mascara can look while still doing something for your lashes) which I've found I really enjoy. Especially as it didn't clump for me, which is my major issue with pretty much every mascara I've ever tried.
The packaging isn't my favourite, but it doesn't bother me and it certainly won't stop me from purchasing when my current one runs out ^^
Amazing value for money
Gives a nice more natural look