Some kind of A. schidigera?

http://www.llifle.com/Encyclopedia/SUCCULENTS/Family/Agavaceae/556/Agave_schidigera

These stay small but may produce tons of offsets. Yours has already started :)

Could still be A parviflora though, A schidigera has broader/softer leaves and not so pointy/sharp tips. Can be challenging to ID between A filifera subspecies but check out multiple pics on web and many sites show pics of parviflora looking very close to yours. Many labelled A parviflora can look quite different, because not every specimen of the same species look exactly the same, species can be variable, AND mislabeling can happen on the web as well...Regardless of what it is, A filifera, schidigera or parviflora, all these are in the middle/small sizes :).

I also find this to match as labeled. Any slight distinctions in appearance could be down to which of several subspecies of Agave parviflora it might be.

This is definitely some kind of agave, and I have seen this plant. It may be A. filifera.

Looks to be parviflora to me. Doesn't look like my filiferas though.

Definitely mislabeled. Your agave is A. ×leopoldii.