Just an update, i cancelled my justcloud account and have received a refund under their any time moneyback guarantee offer.
I found the uploading speed to be about half the speed of my connection. The support was great - always received a response within the hour, however I noticed things like spelling mistakes and broken links.
It seems like a good "cheap" service if you are just after backup for non sensitive data.
I have since chosen to go with SugarSync - so far i'm loving it!
At theCloud (theCloud.net.nz) it's $0.28 per GB per month, FTP and FTP over SSL so you choose if the transfer is encrypted and you can store whatever you like (encrypt if you want). I use a bit if software called Backup Premium which encrypts and can handle incremental backups etc. It's all in New Zealand too so speed is better and data is protected.