The view of SLC is breath-taking (see the following photo taken from my room). The organization is also perfect, in particular the Olympics Oval part. Nice souvenir -- a jacket.
The 90-sec lightning session is new this year. This indeed adds some extra workload to presenters -- but it really gave an excellent overview of the program. So please consider keep it, future program chairs! I had to miss multiple great talks due to the dual-track sessions, which might be inevitable. Probably the sessions are better to be organized according to fields (arch, pl, os, ...) rather than topics.