The Oceans 11 Reverb have 11 variants of reverb. Each variant of the 11 reverbs are controlled by the other 3 knobs, but there are also secondary functions for each reverb variant, so in total 5 controls per variant.
On top of that, 3 of the variations have 3 flavors each.
Not enough? One of them have 2 variations, each with secondary functions. And to top it off one has 3 variations. With secondary effects.
So if you want to try all and tweak all you have some work cut out for you.
Now you do not have to tweak everything. I find the 11 options are more than enough.
The Spring reverb is really good after comparing with other pedals. And the Shimmer also stands out.
It is also a good effect if you want to learn Reverb a bit more before going all in for a more specialized reverb pedal.
Pros:
High level of tweakability and control, if that is your thing
Versatile with many really good reverb sounds and options.
Cons:
Always goes on when power is turned on. Like BOSS pedals.
A slight bit on the trebly side. Hard to dial that away.
Maybe too much tweakbility if that is not your thing.