It's a great price for what you get. I've bought two phones from Expansys and no problems. They're very professional. It should work with anything other than a '3' SIM.
Toshiba make great kit.
But, it's Windows Mobile 5. It's OK but fiddly & finnicky if you're in a hurry. I would not chose Windows-Mobile for I phone I wanted to use rapidly. As for surfing the net, even assuming you've got a good deal on data, for standard web pages, it's not a very satisfying experience on any WM5 device.
Also, you'd better already have a full copy of Outlook, as I think the version on the CD with Windows Mobile is just a 30-day version.