I think it can still be said as a good choice to invest or trade, this coin is still visible on its future compared to coins that are not feasible to pick or less desirable that lack of support.
Which obviously, for investment... is still good, but for me this is used as another investment from Btc/Eth's investment.
But it depends on you. You are in the best position to decide whether you want to invest in a ripple that is a centralized coin or not. Cryptocurrency is a decentralized and open world for everyone. Centralized ripples can also grow someday with so much potential if they have a strong technology field with a good team.