1. Ireland seems happy as a member of the EU. Scots now have a clear choice: membership of a union where the views of small nations matter (the EU) or membership of a union where Scotland’s views don’t matter (UK).
2. Joining the Euro would be good, or our own currency, or continue to use Sterling, whichever, I don’t mind. And Westminster can’t stop Scotland using Sterling for as long as it wishes. And one hopes Westminster would finally see the sense of cooperating with neighbours and friends, whatever he currency and border arragements, after the disgrace of these Brexit “negotiations”.
3. I don’t want a border. I would wish Scotland and England both inside the EU. If England insists there must be a border the I wouldn’t allow that threat to stop independence. In the long run I hope they would see sense about cooperating with Scotland and other near neighbours in the EU by rejoining customs unions and single market. Leaving is madness in the first place.
I don’t know anything about Malta I’d need to read about that. My experience is that Ireland and other European countries I’ve visited seem happy in the EU.