How does the PS3 internet browser works?

[marciosmg]

I have been wondering this for a while.

I know that you can use the internet on your PS3 and all that, but I would like some help with the specifics:

 

1) How good (or bad) is it?
2) How fast (or slow) is it?
3) How is the layout (like IE or Mozzilla or something different)?
4) Is it ok using a controller to navigate?
4) Can I check e-mail, watch videos, post on VGChartz (), etc. or are there limitations?

 

Thanks to anybody that can answer any of those questions.