Even though the per minute rate is the same. I found I could save money on connection time using my own laptop vs their computers. I did this by composing e-mails and such offline then connecting and sending. With their computers you do not have that choice.
Make sure you logoff! One day my battery went dead before I was able to log off. I got worried about an hour later and called them. I was still connected. They were nice enough to remove that time from my acct.
Have a great trip. Try not to work too much.
Sean