I have been using this MasterNodeIndex (now called MN YAP) for a while. You basically invest into a managed portfolio of high-quality coins, which is kept balanced by the midas team. You get the internal masternode rewards as weekly payouts in form of BTC, and potential benefits from coin value increases. It's like ETF for bitcoin, I love it!  Right now, BTC is growing way faster in price than the involved altcoins, so the absolute value of the investment in terms of BTC decreases. But for a long-term investment I believe these YAPs provide a nice diversification of my overall crypto prortfolio. Lets see what the next altseason will bring 

In general, midas team is technically fit and provides good support. The platform needs some polishing on the UI    but -most important- the backend is running stable. They were even able to integrate some more complex coins like ETH and NRG recently.