Test Icons:

For each point this skill test succeeds by, after it resolves, you may immediately move to a connecting location (to a maximum of 3 times).

David Auden Nash
Winifred Habbamock #17.

Benefits gained from skill cards are always nice because you never have to commit actions or resources to gain the desired outcome. Cards like Fearless for healing horror, or Quick Thinking for gaining actions. But in theory Nimble potentially provides a whopping 3 free actions! That's insane value, and you're not even paying anything (except the card itself).

So what are the downsides? Firstly it's only valuable if you need the moves. Maybe you still need to gather clues on your current location, or you need to stick around to act as bodyguard. If you don't need to move, then Manual Dexterity is better in every way. Secondly, can you move? The scenario itself could be preventing you from progressing further.

Maybe you'll put it to good use when you evade spoiler and subsequently use the move actions to reach the exit in spoiler. But if you have access to Nimble then you almost certainly have access to Elusive (a fast disengage and teleport), so even the above hypothetical is questionable at best. A very circumstantial card. I predict this card will be most frequently used for a single move action, in which case Quick Thinking is arguably better.

TL;DR - Hard to get maximum value from it, most likely used for 1 free move.

snacc · 409
That's pretty much been my experience with this card. Very good card on the rare occasions when you need it. Ultimately it ended up being too circumstantial to include in any decks, sadly. — Zinjanthropus · 160
I should say on the rare occasions when you need it, nimble is in your hand, and there's an enemy engages with you. — Zinjanthropus · 160
Track shoes is an interesting option for being able to use nimble without an enemy engaged on you — Chitinid · 13
True! That's a good one because it also gives you a free move, so you can move up to 4 times. You can also use it on agility treacheries, which might be interesting. — Zinjanthropus · 160

Parallel "Skids" O'Toole might be able to make this pretty effective because he can trigger a 0-difficulty test (during any window) that can have agility icons committed to it. If you really need to move across the map, you could even Double it. It's almost like a mini-Elusive when used this way. or like a super Track Shoes. Could be used with On the Lam (particularly the advanced version) to engage a bunch of enemies and move them somewhere conveniently out of the way. Or to reveal a bunch of locations at once. If a team-mate has Safeguard, you could even bring them along for the ride.

EDIT: Note, also, that Skids can recur this with his , or in some cases tutor it with one of 4 Daredevils. Never take move actions again!

Zinjanthropus · 160
Or YOU take Safeguard with original back and your team-mate commits Nimble to your special ability to drag you around! :) — Death by Chocolate · 711

I have found (that I was wrong) that this card works pretty well with lockpic. Investigate with with feet and use Nimble to move after successfully clearing the location.

Using it in a Winifred deck with lockpic gave me a Ursula in reverse feel. But as most have pointed out. You rarely use more than one move.

Unfortunately, you can't commit Nimble to Lockpicks as it is an Intellect check, not an Agility check. However, I had similar succes as you described with Pilfer. — Nenananas · 170
Sorry to be the spoilsport, but you cannot commit this to a lockpic-check, as you can only commit lore-icons to lore-checks and nimble does not have a lore-icon. — trazoM · 9
Sadly, you can't actually commit agility icons to Lockpicks because it's still a intellect test. Agility is just added to intellect. Otherwise that would make this skill much better than it is. — Zinjanthropus · 160
However, you CAN commit this to a Pilfer or Backstab test, so keep that in mind. — StyxTBeuford · 12419
True, or an agility treachery — Zinjanthropus · 160
Movement doesn't provoke an attack of opportunity correct? — CrabbyTerror8 · 96