What can I expect from these fancy seeds?

[altagid]

OK I've grown Nirvana stuff twice. Mainly out of curiosity, I went and got some fancy seeds from DrGreenthumb - Endless Sky & Big Laughing. Seeds are $10 or $15 apiece.

http://www.drgreenthumb.com/

What should I expect to get from this quality of seed?

Higher rate of fems?

More consistent phenotypes?

More yield?

Better bud?

Thanks