Although the layout in 2017 was better, there just wasn't enough people or money to go around. Conventions these days have a bad habit of inviting too many artists to get more money from table costs - naturally, this stretches the con-goers dollar thin, resulting in less business for everyone. Didn't talk to a single artist who had a good Kumoricon this year. Reactions ranged from "meh" to straight up bad. I'm local so I was able to drive here, but if I had paid to fly to this convention I would have been very displeased. I did half the business at Kumoricon that I normally do elsewhere.
Business aside, everything else was pretty good. The venue is nice, parking is cheap, the staff is organized and attentive, and I think the layout would work if there wasn't so much empty space that caused bad flow of people traffic, and there was an unfavorable ratio of booths to attendees. But there just aren't enough people coming to Kumoricon. Why I do not know, perhaps it's the time of year as the weather is more gloomy, but you'd think that wouldn't stop Northwesterners from going anywhere. As far as PNW cons go, Kumoricon needs a lot more attendees to be a show worth going to if you're not nearby.