I'm currently using DropBox (50GB account) which works fine, but at this moment I'm not impressed with its speed. I have a 60down/6up connection and only LiveDrive can use almost the full bandwidth of my connection. Dropbox often is very slow (avg. 100-500Kb/s compared to LD at 6MB/s).
If I only look at the speed and storage costs then LD is much better, but I don't have enough experience with LD to be able to say something about reliability.
Can anyone comment on this? Thx.