There is no wrong or right direction. It is what it is. A lower greenback can be a big positive for the US economy - boosting exports and encouraging people to buy domestic products. On the other hand, it can lead to higher inflation.
As a net importer, it could be hard for the US, in the short term.
The latest jump for the "loonie" was a warning from the central bank that interest rates will be going up, because they're afraid of inflation. That big real estate fiasco that happened in the US? It could happen up here too, as real estate prices are increasing at insane rates in some areas, like Toronto and Vancouver. But not where I live.
People are acting retarded in those markets. Yes, I said
retarded. Politically incorrect, but I can't think of a more appropriate word to describe people who are buying dumps at stratospheric prices.
Right now, a lower dollar would be helpful for the US. Why do you think the Chinese peg the Yuan to the greenback? They don't want their currency to appreciate against the dollar, that's why. If it did, their exports to the US would suffer.
The frustrating thing for Canadians when the loonie appreciates against the US dollar, is that prices don't seem to change much for products from the US.