Hey @billtubbs,
thanks for the feedback, I really appreciate it!

What’s the logic for having the  listToTensor  transformer that generates tensors from the data during training? Just because the source data in this case is a list of lists or a more fundamental reason?

Yes, the only reason is to convert the list of lists in Tensor, so

Also, wouldn’t  torch.FloatTensor(data_as_a_list)  work the same?

would work exactly in the same way and it is surely a smarter and faster way for doing the conversion.  Thank you for the suggestion 
Cheers!