Speaking as one who is not (thankfully) a citizen of or resident of the USA, I'd say she will make as good a president as that country is capable of getting. The whole process, from choosing a candidate to the Electoral College, is a joke to the rest of the world. The obscene amount of money spent, the obstacles in the way of voting, and the gerrymandering are a scandal to the rest of the world.
She may be a bit of a weasel, but that's what it takes. If she wins, she cannot guarantee having the Democrats controlling both houses. Even if she could, she cannot guarantee that all the Democrats would support all her policies. The US constitution is deliberately designed to minimise government action, and to get anything done the president has to be able to wheedle or bully (think LBJ!) As for her being a liar, so am I when the need arises. At least she's not making promises she could never deliver, like Bernie and the Donald.