I am so sad that the Marshall Field's stores have changed to Macy's, though the selection doesn't seem to have changed much yet.
Marshall's, despite the similar name, is not related to Marshall Field's. In fact, I believe it is owned by the same group that runs TJ Maxx. It is the store that might well look like a dumpster but where you may occasionally find good deals. Like others have said, it really depends on the store. There are three Marshall's in my area - one is worthless, the other tends to have nicer shoe finds and the other has an occasional handbag or piece of clothing that is worthwhile. But all of them take a lot of searching to find anything!