I haven't got it yet. I'm saving up the perk points for rank three of advanced engineering which is Electrician. We didn't have electrical schematics when this character started but I'm starting to see them spawn, but yet to find a generator schematic. I have found some things at traders, so we'll see if I buy the perk, depends on what I can find between now and when I have the points to spend. The good thing is the electrician gets xp for trap kills so it won't feel useless if I buy it and find schematics later.
For me horde night is all about ammo. I stand on my walls and shoot everything, perferably before they reach my spikes because I want the XP. Its costing about 100 rounds per 10 levels or so, so I need about 500 rounds to get through a horde night right now. I love grenades I just drop them onto a big cluster of zombies and watch bodies fly. Molotovs still blow up in my face or the radius is too much and light me on fire so I don't like them for fort defense where you throw straight down.
Very cool, thanks! Really looking forward to the Grenades. And faatal recently mentioned he had done some work on the molotovs, so keeping fingers crossed on their 'look out below!' usability
Electricity Tip.
I just had a horde night after taking a couple rl weeks away. Something weird happened within the first couple minutes. There was an explosion, inside my bird cage! And a wierd boomy at that. I lost half of the switches I had mounted on the floor (concrete blocks), and a couple of e-fence posts that were 5 blocks away, while -not- losing a couple of e-fence posts that were in between the lost switches and the far fence posts. <definately a one-off, and running a few modlets so no bug report>
Anyway. The 'tip' is to protect your switches better than I did (though I've never had anything like this happen before, heh).
Due to the switches demise I lost -all- of my traps, eep!
Which led to quite a bit of advanced sailor speak while trying to suddenly fight all the zeds strolling right in to my small 7x7 birdcage.
Hell, I hadn't even bothered to put an e-tool in my backpack, though I did, thankfully, have one in a flush mounted floor chest in the cage. Which allowed me to make a couple frantic connections to get the e-fencing back up.
Fun, though -wildly- unexpected!
--meilodasreh, funny stuff!

and just in case it wasn't clear; the shower comment was meant as, 'MMs working so damn hard to get A18 out he doesn't have time to shower!' ... since MM & I are of an age I'm 99% certain he got the intent (and obviously meilodasreh got it and expanded on the joke), but just in case any of you young whipper snappers were wondering