Pros: this is a review for the 16gb version of this drive which i received and will be reviewing. Outside of storage capacity, i believe they are identical.This is a very fast pendrive and i enjoy that by being a slider type pendrive, their is no cap to lose, so that's one less thing to worry about.It has a nice rubberized coating on it which gives it a nice high quality feel. I've been using it pretty consistantly to image pcs and carry software around and it has held up very well to wear and tear. After a month of use it physically still looks good and the sliding mechanism still flawlessly clicks in place. I no longer see the 16gb version available here, but the other versions all seem to be well priced for the performance, ease of use and reliability provided.Cons: when you insert it make sure to push it in from the back part, if you try to put it in your machine from the sides it may just slide closed. A slight annoyance, but the only con i could think of.Other thoughts: i found this to be a very useful and fast part. I've been using it to image pcs and carry software installs for about a month and it has worked without a hitch. I was surprised by how much abuse this little pen drive put up with and still looks good. The rubber coating seems to be very high quality and hasn't even gotten a noticeable scratch on it yet.