We visited their models and were underwhelmed with their product. While the concept is interesting, honestly buying a home with earthquake protection in mind is not a priority. Also, homes today are build per code and significantly better to handle a decent jolt.
The Eastvale homes are bang in the middle of 3 schools. Traveling in and out will be a hassle, not to mention the constant traffic. Also, not gated and no views. Tough to buy at the premium the builder is asking. The had atleast one quick move-in when we visited.