My city installed eight of them in a literacy initiative, and asked for volunteers to keep an eye on them, so of course I signed up. Got the list of assignments, and this one is mine, placed on the grounds of the Advanced Learning Center:https://www.bookcrossing.com/---/825174
I'm one of two stewards assigned to this one, and I suspect I'll be checking up on most of the others, if only to keep them on the "go hunting" pages with a release a month, if not more.
I do hope they work out, without suffering vandalism or having all the books cleared out at once, or - perhaps worst - lack of interest, but so far, so good!
(I'd have set up one in my own yard long ago, except that my street is narrow, has no sidewalks and lots of traffic, and tends to accumulate large snowplow mounds in winter, so it isn't easy-access for book-browsing.)