From a novice point of view, SIAcoin is a great investment at the moment, it's low, ASIC miners come on board the network difficulty low, some miners are getting $500 a day in returns, meaning that it'll ROI within a week (currently.)
Sia Coin is VERY low in the exchanges, it's listed on many
https://youtu.be/QDYWh9-5gS4the coin is a new coin and the price is very cheap for now, if you want to invest in sia coin it is pretty good but it takes a long time or takes long term to get profit or ROI, after pattern and go up and so go down or very cheap price then open a sell order and wait for the sale yes it takes a very long time therefore I call it a long-term ROI.