I've stayed there and visited a few times. First off, it's not on the beach but a lot or so back. The rooms are small but comfortable enough. The rooms on the north side probably are better, as there's a wall close to the rooms on the south side. It's really more of a small hotel or inn, with I think six rooms on the first floor and the owner's quarters above, than a B&B, but breakfast is included. Depending on the rate, it could be a good place if you don't need to be on the beach or have a pool.
For not much more money (US$95 including tax), you might also look at Coconuts which has larger rooms, includes a continental breakfast and use of bikes, and is on the beach (but again no pool) and is only a little farther south.
Belize books and publications by Lan Sluder:
Belize First Magazine (http://www.belizefirst.com
Fodor's Belize & Guatemala Guide
Belize First Guide to Mainland Belize
Adapter Kit: Belize (the first and only comprehensive guide to living, retiring, working and investing in Belize -- a best-seller on Amazon.com)
UpClose Central America
San Pedro Cool (coming soon)