Some points you made are true, some, not so much.
On Hotel site: For me, It didnt crash this year. It was strained, but it did not crash to the point of not working for several hours as of past years. I Stress tested it after initial rush, and I didn't crash it then as well with it being hit with 5k browsers hitting it at the same time. practical. But in general, It will always be easier to get a hotel for next fanime During the current fanime. We kinda are stuck at the convention center, as its the largest venue in the bay area, and the hotels are already strained from other local things at the time.
On guest Roster/music guests: 2 years ago had a pretty good roster IMO, last year I was too busy running from gathering to gathering to sit down and go to see them, so again, I cant Testify to whether or not they were good. Although, they were really late in getting them last year, so there is that. Apparently from the meetings, Guest are already "set" as of feburary for this con, they just will announce them later. Its one thing I have hammered in at staff meetings and other staff things, if we want guest fans request, we need to get them by January as most are planned by then now in days...because we are in the hunt with many other cons for limited time. That, and people who were vocal last year on guest they wanted, got what they wanted. If you want someone, SAY SOMETHING, and SAY IT EARLY. all is fair in the game, so long as your starting in it.
on Feedback: http://forums.fanime.com/index.php/board,27.0.html
is where I went for seeing Feedback, and again, starting early is a good thing on giving feedback, allows us to make sure that we see it, take note, and improve. This post is REALLY late in the game for this year. Plus, I believe they sent out an email requesting feedback, but don't quote me here.
On day 1 programing: in a way, its meant to be an appetizer for the rest of con, due to the fact that the biggest surge of people come Sat. & Sun. I can't stress that there is more than just panels at fanime, and the major reason I keep going is the gatherings. How much time and effort are put into these cosplays are just amazing, and just going to see one of an anime you have never seen might get you to see it. I picked up Touhou, KLK, Kuroshitsuji, SMT, and so much just from going to the gatherings. Don't feel like your bound to only going panels/Day 1 programming. Sometimes just exploring the town can make Con even more fun.
Your ending statement: The feedback I have seen of last fanime was 90% positive, praises all around, there was somewhat an exodus 2 years ago because of linecon, and I understand that. But last year actually was pretty great IMO, minus some bullpucky that happened (nother story, nother time). This year, I know we have more vendors coming, and the gatherings are just blooming. I dont know anything on the panels yet, nor the guest as thats pretty shut right now. Honestly, I believe Fanime had a downtime with the construction, and without it now, It is worth going to. To a degree, it still is made by the fans, for the fans. Its your money however, and I can't spend it. Anime North is the same time, and from friends its sliding downwards, thats all i know of cons at the same time slot.
Although, reading through this, I realized I am more weighted towards cosplay than general con events, so take it with a grain of salt. TBH, cosplay is why I go to cons, help cons get started locally, and develop from what I can to make the con better. Guess I got addicted ever since I took the picture of a first time cosplayer exclusively, and the smile on her face was wider than the river Nile.
In the end, Go on what you think is worth going to.