I took it in earlier playthroughs but in my latest I didn't.
I find weapon repair kits easy enough to make, so yeah
It's a bit of an average perk IMO, not good, not bad.
The thing about weapon repair kits is they're only good for weapons. If you have a rare piece of armor or headgear, repair kits aren't going to be of much use. Unless there's an armor repair kit I don't know about? Honest question.
I wear veteran ranger armor, and I definitely wouldn't want to murder a ranger or shell out a small fortune every time it needs repairing. I have around 20K right now just from selling loot, but those are my ammo funds. I go through rounds pretty quickly, shooting at makeshift targets and such. Jury Rigging makes it so I don't have to waste that money on armor.