I can say that it is Oyster Protocol (PRL) this is the future of website monetization and distributed storage, which is built on IOTA Tangle and Ethereum. Oyster Shell (SHL) will be distributed if you have Oyster Protocol (PRL).
Yes I think Cardano is a good coin for long term investment but you have to check first the whitepaper and road map before jumping on buying this coin. Cardano is known to be the ethereum of Japan as Neo is the ethereum of China.
I've been participating in a lot ICOs nowadays because there are many ICOs which I think (my opinion) are good to invest. The ongoin preICO/ICOs that I had invested are (BABB, GBExchange (just finished - sold out after 2 days of ICO), Sapien Network, Serenity Financial, Helbiz and PECULIUM- finished also)
For the end of February I'm looking for policy pal and Banca.
I'm eyeing for CEDEX, DIW TOKEN, TOKENZA, GRAPHGRAILAI this will be for march to.april ICOs.
I'm only investing the amount I am afford to lose. Research first before investing any money on ICOs