I guess the PR card is not as big an issue for us, because the person is still a permanent resident whether or not he has that card in his hand. But citizenship can be quite a big challenge, because, as was mentioned, it's 18 to 24 months; that's two years. That means someone has to wait an extra two years before he would be eligible for certain positions, before he would be eligible to vote.
Although it may or may not impact on the sponsorship issue, because you can still sponsor families from overseas, some people don't want to leave Canada until they become a citizen, because it's better that they go back as a Canadian citizen to the country they're returning to. So those kinds of issues can be a problem.
For us, the delay usually happens with the other things I talked about--sponsorship, H and C--and those are horrendous, because a lot of times, while you're in the process, if you're inland...the person waiting for the status may not be eligible to work. He or she is not eligible for health benefits, so it's a huge burden for the entire family just to wait around doing nothing, basically.