Waves has very good fundamentals and I agree that it is heavily undervalued at the moment. I think that their marketing has failed big time when compering with some other projects. It seems that hype is making a big part of market evaluation and Waves just doesn't get any. Furthermore, they don't have a charismatic figure like Vitalik for ETH.
Nevertheless, as I already said I like their fundamentals and will probably invest more in the project. They should be good long term investment but don't count on quick profit.
That there is only the approach to mining. POW is an outdated approach. Is it reasonable to burn so much power for nothing. In Waves this LPOS is a much more reasonable approach from which side do not look.