The real problem with Electroneum is that their dev's are working pretty slow, and the only reason of it's success if that a lot of people are shilling this coin like if it was the best one to mine, the best one to hold, and the best one to buy.
This ofcourse is due to lack of alternative to monero in the cryptonote section.
If you leave monero, there are no any other cryptonote coin to transact with.
Bytecoin, Aeon or DSH never got the attention and the algo is not as easy to implement as scrypt making it a algo of better devs.