This.

I always take it, as it enables me to use all the cheap stuff I rarely bother selling to repair the expensive stuff that I then sell for a boatload of caps.

Lately, however, I have been thinking of dropping it as I end up with so many expensive items that I overload the game economy, and amass hundreds of thousands of caps in short order by recycling the vendors in order to sell all of it. The fact I always run Barter up doesn't help, as I am getting full or near-full (I altered the values in the pricing formulae such that 100 Barter takes out the 'ripoff' factor) value on all this stuff. I do have an almost completely reworked Repair system in my game, though, so this is not necessarily the case for everyone.

The ability to mass-produce Weapon Repair Kits does not help either, as the game economy just cannot handle players with a high Barter cashing in expensive items for a pile of stuff to repair up and sell in turn, as one quickly ends up with far more value than all the vendors combined have caps and supplies to trade for. Some of this can be drained by amassing ludicrous amounts of ammunition, but I don't bother with that as there's no real point unless I'm using a Minigun or Gatling Laser as my sole weapon.

How one views this perk, or even if it's really going to be useful, is going to be strongly influenced by how they play.

The armors I use are NPC repair only w/o the perk, but the repair bills are under 1000 caps. My favorite weapon is the Trail Carbine that can shoot ~500 rounds before needing repairs by default. My end game follower is always Raul and he makes everything last twice as long. Last of all I always get 70 barter by level 22, for another unrelated perk, so having caps for the few repairs I need isn't going to be a problem. As you can see Jury Rigging isn't going to be that awesome for me. At best I'll have some more caps, but I already have 97,000 and a Casino yet to rob.

Now, someone who has remnants power armor welded to their bodies and kills everything with an AMR will think Jury Rigging it the greatest thing ever.

It has it's perks (aghhh a had to ) but needing repair skill at 90 is quite an annoyance but i don't think it's a must as you can go without especially as you get a lot of wonga (money) and if you have raul it's a debatable perk at most.

its ok but it doesnt svck as bad as junk ammo perk god 5 perfect tin cans there isnt that many to make 300 bullets

repairing your Remnants Power Helmet with a pair of reading glasses? WIN