I'm a well read grad student who's bluntly honest about all things, although I try to be most honest about myself.
Some are just funny, some are political or social vehicles, and some are thought provoking or sad. But all are rather unique takes on characters, some of which are one page long, some a few pages longer. Some are word heavy while others use art more than the written word to convey their message. Some attempt to blend the two. Some fit into the Marvel-verse splendidly, no warped aspect, some do warp to make their point and couldn't possibly be considered canon.
These quirky tales are not only a delight, but brought to life by some of the best in the business. True, many don't fit into the mainstream comic arena: their odd hipness, the art itself or the writing style simply wouldn't fit in with Marvel in particular. However, it's nice to see Marvel poke this fun at, well, itself. It's nice to see something that isn't in the style that is the usual.
It's a lot of fun, in fact. Although probably not as much fun if you don't have some familiarity with the characters. And yes, the Jeffrey Brown X-Men story was the highlight for me.