Product review (1 stars): One Star
E5 error after 15 months. Require new filter board. Quoted 773.81$ for repairing.

Added pic on March 21st, 2015.

Follow up: 20170108
Due to counter cutout limitation, bought second one after the first one went out. Now, after three years minus 20 days, it is broken again. Same story, huge pop sound, then all flashing "E" letters. Very "efficient" design to outlast the warranty period. As electrical engineering PH.D. by training, I'd say they did fantastic job by balancing the cost of the PCB board for meeting minimum quality requirement.