I think this is a good time to invest on XRP because the value went a little down and it is an advantage for everyone who wants to invest. And its price is slowly recovering now. XRP is something you want to invest with if you want a long term investment.
When we are focusing to invest in a coin caused by the usage and this coin is not a suitable coin anymore to be used as an investment. XRP is a good coin but it doesn't mean if that is worth to be considered as the best investment too. It will be very good to choose another coin.