EDIT: Yes, mostly in that, with square-taper bottom brackets, you can get them in different lengths, to vary the spacing of the right crank to the bike frame. However, my Hollowtech II style (generic) came with the exact correct spacing. In fact, when I tried to space it out 4mm using spacer rings under the right bearing (due to space issue with front derailleur), the chainline was off, it was dropping the chain off the crank. Fixed derailleur issue, removed spacers, works perfect. Other than that (a non-problem)...

The only con I have seen, is not available in all styles. I prefer a "retro" (old) chainring pattern of 5 arms on 110mm Bold Circle Diameter (BCD). Hollowtech II first came on 5x130mm BCD road cranks (doubles, and triples), later, the Shimano-specific 4 bolt asymmetrical pattern (which I loathe). I currently run a double crank, 50/34 (they can now do 16 tooth difference), and 34 is too small to mount on 130mm BCD, it is a 110 BCD (a very old standard). Gives me almost as much range as a 52/42/30 old style road triple. But there is no inner 74mm bolt circle as on triples, which I would need if I want a low chainring smaller than 34T. Very hard to find. But if you find a crank that suits your needs in terms of chainrings, zero downside. By the way, my much-loved crank, was $65, bearings included, on amazon. Super deal, but no longer available there. I don't know if that nice crank on the Liberte, is 130mm or 110mm BCD. I would prefer 110mm, it might allow mounting a 34 inner. If 130mm, it might mount a 39 or larger inner ring. (Both by moving the chainring to the chainguard position on the outside, then add an inner ring, but this is only of value if you want to mount a front derailleur. That's just how I roll.) If you're curious, details on this thread:

Better gear ratio without changing the whole setup

I also prefer "road" cranks because they have a lower Q-factor, this is how far apart the two pedals are, laterally. Road cranks have straighter arms and lower Q, than mountain cranks which tend to have more outward bent arms and larger Q, to clear larger frame chainstay tubes.