I've stayed at a La Quinta Inn last year in Vancouver (or, I think it was Kumoricon 2010 when it was in Portland...).
The Pros are that (in my opinion,) the hotel is VERY nice, GREAT breakfast, and $64-$69/night. If you have a pet you have to take with, the hotel IS pet friendly. The latest reviews are great (the older reviews were AWFUL, but that's before they remodeled and changed everything.)
The only Con I really have (haha, a CON for a hotel I'm staying at for an anime CON c: ) It's about 3-7 miles away from the actual event, so if you REALLY just want to stay somewhere local, then I won't recommend the La Quinta Inn for you. But, my mom and I don't care about the distance. We just look for something that's nice, except cheap.
So besides the distance, the La Quinta is WORTH IT. I'd give it an A.