It is without doubt that Rossi and his co-workers have some very important questions to answer; most particularly in the matter of how exactly they got the data on which they rely (type of instrument and sensor, placing of instrument and sensors, nature and dimensions of pipework, capacity of pumps, calibration data, validation data....) and the destination, application, and dissipation of all that excess heat.
If it's all on the up-and-up, then these questions should be easily answered.
Sadly Rossi is neither a good engineer nor a good scientist. There appear to be no calibration/validation data for any instrumentation; and his habit of running tests without parallel unfuelled controls is simply appalling, and cannot but cast doubt on his claimed results.
As one who would really like to see LENR working and in commercial use, I am very far from convinced by the e-cat (or indeed, the Quark-x). I see no massive conspiracy on the part of IH, just some ineptitude in drawing up contracts and agreements, and insufficient due diligence in the early stages.
The evidence of Rossi's shadiness is mounting, however.