Completed this process in about 2 years. We lived in the US from 2015-2019. We have since completed my spouses immigration to Canada and will be returning home in the Fall of 2019.
But feel free to ask questions about the process, but I'd recommend looking at all the pros and cons and really deciding what you want. We wasted a good chunk of time and money doing it this way when we should've went to Canada the entire time.