I remember mining a couple thousands of this and still hold them on my portfolio. Its a coin similar to Worldcoin or Litecoin I think. They do nothing new, but have decent developers behind and are faster than BTC, which in the unlikely event BTC cant solve the fast transactions problem, they could rise.
Digibyte is definitely a long term investment. Guldencoin also looks like it might have the best developer now in the crypto field just no one knows it yet and also a long term investment.
Digibyte will be doing new updates and bringing out innovative features. Watch this space!
Digibyte doesn't have a premine and developer is not anonymous which are a big plus!
If you terrible at trading like myself and just want a solid investment and decent growth over 5 years you can't go wrong with the 2 coins I mentioned above, if you into gambling then you have plenty other coins to choose from.