I had some Waves in my portfolio, but unfortunately it's not doing so well as I expected.
For today I've got about 30% on top of my investments, but it seems like more and more ICO's are going to use different blockchains than Ethereum. I've seen already about 10 projects which are using NEM mosaic, Waves or even NEO blockchain.
Waves' investments will grow up, I believe, but it will be 1 or 2 years later, I think.
So hold waves and Keep Calm 