They should, Suns being the number 2 team now and could end with a number 1 spot is already a big achievement even if they will not make it in the 2nd round.
West is full of good teams, it's hard to predict as even the Lakers who are currently the favorites is not guaranteed they'll get the back to back championship, the real battle is in the West IMO, so winning in the West is like having an easy series in the NBA Finals.. however, hopefully, it will be different this time as we have the Nets who are currently been hype to get a good chance to win the NBA Finals.
Yeah, I think they will and probably will upgrade the team if they see fitted.
It's hard to beat the Suns, and I think the problem is that teams have overlooked them. But they play really hard, day in day out that's why they are in the second spot and probably be going for the number 1 in the West. So I'm expecting them to play good whoever they faces in the first round.