1. What are the features that you feel that are sorely missing?
I am using three wallets for now. This includes mycelium, electrum and nano ledger.
For all of them or any other wallet out there I see one major challenge or feature that is missing -> Offline Transactions. Traditional banking apps who needs internet to synch the data and validate the data before confirming a transaction. Unlike that, crypto wallets has additional benefits of blockchain where the
Tx gets confirmed after miner validates it once it is
broadcasted to the chain and picked up by miners. When we have a wallet installed in our phone they usually synch up the latest blockchain data and work in series of data packs received and sent.
I believe that crypto wallets should be able to send the money even when its not connected to the interenet. They can add the feature in wallet which will help embed the broadcasted transaction hash on the phone its itself and get
"temporary confirmation". The receiver address should gain the coins in their wallet by means of
NFC, IR, Bluetooth to synch up this hash and make the coins available in their wallet.
Once any of the mobile phone is connected to the interent then wallet shall be able to synch this data with the parent blockchain and get the
"permanent confirmation" about that Tx.
Obviously this will have many technical issues but what I have mentioned an issue and an imaginary solution to it as per my thoughts.
May be developers could have solution on this in near future, but with the blockchain tech I believe it should have been invented already.
2. What are your biggest issues with specific wallets you're using, or with BTC/cryptocurrency wallets as a whole?
Well I have no other complaints with the wallets. All I am concern about the connectivity which they have given us. No network means the app is useless.
At least they should be able to add the feature where I can synch the data between my mobile version and desktop versions too. Read above to understand this.
3. What's your favourite wallet and why? Is it the user interface / user experience, colours, specific functionality, habit, perceived trustworthiness, something else?
Mycelium is great one for me. Idk, may be this is the wallet where it all started for me. Obviously the ease of use is way better than other wallets. I can easily bump the fees, tx if not broadcasted or got stuck. I get to have HD wallet and regular wallets which I can segregate as per my needs. Good feature mostly not seen with other wallets. The fee structure can be chosen as per your speed. They have unique differentiation of fees, like low priority to highest priority. Recently I have seen lowered fees in the mycelium as compared to others.
4. What changes would you like to see with the wallet(s) that you're using?
Ability to notify the incoming and outgoing transaction in the notification bar is not available for the ledger and mycelium if the app is closed. Or in case of ledger you need to have it plugged in to see the notifications.
Also, they dont have the quick smart apps on the Apple watch. For example, Raven Core has their smart watch app to where you can quickly see the upcoming transaction and also check the balances. This is missing for others I believe.