I currently use it for multiple remote sites it has been a great tool for me. The one thing I don't like is I can't organize like I want to. I have some sites on the paid edition and have some of the Free edition. You can print and transfer files with the paid edition but there are sites I don't have to do that with so I use the free edition for them. The remote system is always on when you want to connect if the PC is turn on.
There hasn't been one time that I was concerned about security with logmein. They do use encryption with all data including the logon process. I had the same concerns you did and after speaking with customer support I felt comfortable.
https://secure.logmein.com/security.aspNow that being said I can tell you 100% that the system can't be hacked to get user information because I felt like retail stores and online stores should be able to protect information but they get hacked too and lose credit card info. I don't think anything is full proof but I do believe logmein is safe.