I think it's a VAST improvement over the old flash crap. As an Ubuntu 64 bit user, flash tends to crash quite often, which leads to a terrible beatport experience.
Also, it was ridiculous to just link to a page, the loading time was annoying, as well as pagination, and I could go on. There really was no reason for the whole site to be in flash. I hate full-flash websites a whole lot. There's a reason there's something like HTML, to present information. No need to stick all your page's content in flash.
And I haven't noticed any problems with the new beatport at all. I only have positive remarks.