The answer seems to be 'No'.
The most recent press release, on the website of the Snowdonia National Park Authority, is dated 20 May. It states: "The contractors are back on site after the winter break and are now installing the new floor in Hafod Eryri . . ." Since that was only 2� weeks ago, and there have been no subsequent press releases, it seems reasonable to assume that construction has not yet been completed:
http://www.eryri-npa.co.uk/page/index.php?nav1 =lookingafter&nav2=4&nav3=3&lang=eng&view=grap hic&c0ntrast=1&id=1080
Chris