It works, what more is needed???
I'm sure that it would be great for Bitcoin if they had a professional looking site. Mt.Gox is one of the sites that almost everyone who consider getting started with Bitcoin will visit. It's one of the sites that will make people decide if Bitcoin is a "real" currency or just a toy project. Honestly, today the Mt.Gox site does not look like something that regular people will want to trust their money with. It does not at all resemble other professional web sites that handle a lot of money.
Example of web site related to finance, simple, yet professional design: http://www.nasdaqomxnordic.com
I could live with a layout like the one you linked. Save for that annoying bouncing friggin ad at the top, the others arn't too bad. I would like to see them add the option to also reposistion the modules, like that site has them where you can minimize them, but also be able to move the vertical placement. Very nice.