I've used this wallet intensively for the byteball coindrop, I've experienced some frustration.
(numbers are fictional for privacy)

1)
What's the reason coin is sent from a to b? All it does is increase fee costs for this and future transactions.
I'd assume it's because reusing addresses is bad for privacy. But this is not the case here as some coin is still is A.

2)
Also, using the memonic passphrase I can sign messages with any specific addresses of any specific wallet. (using github tools in offline mode)
Some coin of a wallet was sitting in an address, comparable to address B above, for which I could not locate the private key.
I had to transfer those coin to a new receiving address of the same wallet, for which I did locate the private key.
Maybe these intermediate addresses have a different type than the receiving addresses? not sure


any eta for signing messages within the client (for non-imported addresses)?

3)
Some transactions to previously used addresses were not showing up in the transaction page, although the balance was correct.
I'll investigate this later on, I might be wrong

EDIT: I just send another tx, now a transaction from 2 addresses, although one address has enough to cover the entire transaction??? That's like 0.5$ lost in excess tx size fees I can't imagine this being good for microtransactions.