I haven't stayed at Xanadu, but the owners gave me the cook's tour last summer. Very nice condos, though on first glance the "monolithic domes" are a little strange. Inside, though,they are are comfortable and attractive. Not as large as, say, Banyan Bay, but then Xanadu's rates are lower. Good little stretch of beach, and a fine new pool.
San Pedro Cool, the first & only visitor guidebook to Ambergris Caye www.belizefirst.com