Any on-line community that is accessible to every idiot on the planet sucks.
I've heard nothing but bad news about Sony's network (the Rockband-forums are filled with complaints of PS3-users ... although that may also be Harmonix' fault as they do appear to be suffer from a US-only / Xbox-preferred mentality), but that may be because Sony doesn't like to do business with its european customers.
As for Live! ... I don't understand why it costs money at all as there's no service.
The only thing that 'Gold' grants is access to on-line games played on other consoles, which isn't something I'd be willing to pay for.
The new dashboard is a bit confusing at first, but that's only because it's new and different.
I really like how you can use the guide-button to jump to any of your recently downloaded content.
You can now visit the webpage to buy content and que downloads for your console, which is a good thing. It would be even better if you could get an overview of what content was new.
The avatars may have been Wii-ripoff, but they're not that bad and you get the chance to use them as your gamerpicture which is a great alternative to having to pay too much money for an avatar you can't even see before you pay.