Support is slow. Documentation reads as it has been obfuscated as well. the UI is counterintuitive. The license service requires a lot of manual configuration + extra programming... E-commerce integration only works partially... No one notifies the user/buyer of generated license, you need to write code for this yourself.
I wouldn't believe the few negative pieces of feedback before buying it myself.. since there are a lot of big names marketed on the site + when you look at the features there are a ton of them...
I bought the Enterprise version and other tools from logincp together thinking I was buying a complete system. Unexpectedly, the Only thing I'm happy about is crypto-obfuscator.
All the rest requires a lot of work to set up. I've switched to a cheap php licensing system that I was able to code in just a few days while with cryptolicensing I was already a week further without having the system set up...