Decentralised wallets are usually the better ones. I like those multi-currency wallets that can be used even in daily transactions. Is there any to recommend as well?

I guess now it is a good time to invest. news from CNBC showed that Bitcoin rose to its highest level in more than a month as the broader U.S. financial markets sold off Tuesday. It kind of show the potential and the steadiness of it now.

I am new to this industry but am really interested to know more about it.
How do rate the potential of a cyptocurrency? By number of people using it or the features or... ?