While I found the BMP did get boring after you beat each mission a couple of time...being able to equip every char I have (9) and every hero on every char with a max inscribed weapon that didn't look like total crap...BIG WIN!
yeah they have some nice skins....and its something you can do while you wait for your guildees to show up ......or for other people to get online (yes that means my husband---).....
the missions arent too hard, and the skins are nice....replayablity is low (so I waited a bunch of months before I did it again)....but heck its better than the stuff I have been getting from the eye chests!