yes, ADA is a good investment, because ADA in the top 10 on coinmarketcap, so that proves if ADA is still popular and the current ADA price is $0.284 while the ATH price is $3.09, so if you invest in ADA at this time and the market start to increase again (bullrun) in the near future, then of course you will get a lot of profit, because I'm sure if a bullrun occurs, then the price of ADA will reach its ATH price or even a new ATH.
Yes regardless I still see ADA as a potential coin,
for long term investment it looks like it will be profitable and the important thing is to be patient waiting for the right time to sell it,
let's hope that when the ADA bullrun will reach a new ATH and we'll see.