I have used it at home with my LinkSys access point without problems. I have also used it at work and at Denver Airport without problems. Leave the SSID blank to have it work with any system.
Works well with Vindigo and Avantgo, as does hotsync. The included mail program is reasonable. The web broswer (Blazer) is not the most current version, and trying to get to V2 has been a bit of a problem so far. The reviews and comment's I have seen indicate that V2.0 of Blazer is alot better, but I am happy with the included version.
The range is comparable to my notebook PC-card.
One of the nice touchs is that the module comes with File Mover on the module, which lets you use the 674Kb of module memory however you would like.