Nothing short of Brilliant.
Been using Witopia's product on my laptop for over a year now - works everytime. For my second subscription, I bought a combo package and now using VPN on my iPhone as well. Initially had some problems with the setup but turned out to be my wifi router.
Where Witopia really shines is in their staff who provide excellent service and support. They are VERY prompt (usually reply to emails in minutes) and they know what they are doing. I cannot say enough about how good the crew there are. Have, and will continue to recommend Witopia to anyone who will listen. Thanks guys.