IB family here with a child in pre-k and we have loved our experience at Hearst so far. Yes, it is an 80-year old building but I don't believe the facilities interfere with the learning process. Whether we get the full renovation that was promised to us is still in question, but at the very least they are renovating the current building over the summer, so the pre-k class next year will be in the nice new classrooms. I believe the plan is to add another trailer to add some common space while we await the funding for the rest of the expansion.
Kids eat lunch at their desks, which isn't a big deal to me because that's what I did at my school K-8. In aftercare they occasionally wind up eating snacks in the hallways but that is only when they don't have access to a classroom for some reason, which doesn't seem to happen very often.
Definitely come to the open house, we look forward to meeting you!