hey, i enjoyed the show! i really did.
i love the walkmen, and despite...em...other...disturbances, i'll call them, they still played an amazing set and i loved hearing them. after petty annoyances are gone, it all boils down to the music--what i was there to hear. and on that level, well, they kicked ass.
there's your positive feedback.
as far as outdoor concerts, ditto that.
they are great when it's nice outside, but a bit of a risk to take. when planning events months in advance, you have no idea whether it's going to rain or hail or god knows what. i've had outdoor shows before where we got there, saw an opening band, and then it started pouring and thundering and they had to close down the rest of the event. it made me super-sad too.
my suggestion would be that if you plan it outdoors, you have a room open somewhere near where stuff could be moved the day of in case of a "weather emergency"
good luck with that