While Level E didn’t actually reach the heights it promised, it’s still a stellar effort, especially compared to Occult Academy, which had a fatally flawed central plot that wandered all over the place like a drunken sailor. In fact, it’s quite the reverse for Level E, the series tends to suffer in quality if at least 2 of Yukitaka, Craft and/or the Prince aren’t involved in the short arcs. Kudos must be given to Teh Koyasu for chewing scenery like it’s going out of season as Craft. Their comedy gold interaction just meshes well with the surreal atmosphere that Level E is fond of using, and the arcs they’re in tend to be the most surprising in terms of hilarious twists. The show also starts well and ends well, which is not really the forte of most anime we see these days. They’re either open-ended for sequels, or the writing simply goes downhill for whatever reason. Level E is clearly atypical in this regard, since the bookend arcs are the best of the lot, and plays delightfully on the characterization of the Prince we’ve seen so far. His delicious comeuppance and the fate of the Earth both end on a good note, so the sense of closure is as well executed as anyone could expect.
People have lamented the short length of the original manga, but either Togashi thought it wasn’t suitable for the shounen-specific nature of his portfolio and wanted to keep it short, or he didn’t want to ruin the series integrity by continuing once the ideas ran dry. In any case, it’s more than 10 years since the manga ended, and since Togashi can’t even be arsed to work on a regular schedule with HunterXHunter, that ship has not only sailed, it’s halfway across the ocean.