I've had mine since Sunday. I really like it and for browsing it is better that any phone I've ever used. Android OS is great (but I do also have a Hero so I am used to it). There's no way you'd want to hold it to your head as a phone so make sure you have a Bluetooth headset or get it on a data only package.
There is one bad thing and it could be a deal breaker. The battery is atrocious although I have read elsewhere that it is better than expected. I am taking it off charge at about 0600-0700 not using it much at all, and NO multimedia processor burning stuff, and it has run out of power by mid afternoon for the last three days. Yesterday I saw the percentage go down by 7 percent in about 20 minutes of browsing at work. I have removed everything I've installed and made sure no widgets are running so as I can test it for a couple of days but of this continues it's going to have to go back. It's made worse by the fact you can't get a spare charger anywhere as Dell saw fit to use a proprietary connector.
In short I would say if you've almost made your mind up and can't wait then go for it. If you can wait I'd leave it for a couple of weeks to see if the battery conditions itself and improves and see what other people say as it starts getting used by a wider crowd.