Yeah, it's on my to-do list. "Seamless" co-op was never really my problem with FromSoft's mulitplayer design, as they implemented really cool mechanics to make strangers want to help each other. The unfortunate part is that they put in additional mechanics to deter them from helping each other (invasions). The summon sign system is also neat but is prone to race conditions where the sign disappears before you can summon the person because someone else got there first. Things like that are why menus may not only be simpler but also better.