Pro: The lock worked well, perfectly, for 11 months.
Con: One day, I put the lock as I always do, and in the evening when I was going home after work, the lock didn't open!!!
I stayed one hour trying to open it, but nothing. I came back this morning more calm (yes, the fact that MY lock locked me stressed me out for a while) and decided to try combinations around the one that I had. I first moved each digit separately (the top one, then the second top one, etc). Then I moved two digits simultaneously (I was going to do the two top ones, then the two middle ones, etc.), and it opened! the combination changed from 78XX to 67XX!!!
Targus (manufactured) replaced my item (you have to pay shipping to send your defective one) for another lock (a key-type lock that is less secure, but doesn't seem to fail).
Bottom-line: I wouldn't buy this again. I researched other models over the net and all seem to have problems. The ones with keys are easy to pick, and Kensignton's combination lock seems to work well with right side lock slots (mine has a left-side lock).
Good luck.