Although Crypts and Things has been out a good five years now, once in a while it gets a 4-5 star view over at DriveThruRpg.com. As quoted below, this one was especially useful since Patrick Y, the reviewer, had just finished a campaign.
I just concluded a six-month campaign, taking a party up through level five. Everyone had a blast and would have been happy to continue. My experiences track with the previous reviews. Crypts & Things is an excellent OSR game that captures everything I like about the Sword & Sorcery genre, without including tropes that more properly belong to high fantasy settings.