I own the full version and wanted to use this on another site so as not to have to buy another license. 😛 I’m not having a problem with it, however I understand the complaints. This is not one of those plugins you just ‘toss-in’ and configure and it works. You have to work with it. A little trial and error to get it to work with your theme, etc. READ THE F***ING MANUAL! It will save you a lot of grief. Youtube is your friend 😀
So anyways the biggest problem is with pictures/images for me. Have to get that configured correctly and sometimes have to play around with it to make it work right.