I did around 500 sessions at Fleetwood in Revere, MA on their classic API (where the late/great Bill Ferruzzi used to work). Great console and very warm sound.
When doing a listen comparison between a recording in the box (I.e. computer/laptop,) and then on an API, I could cleary hear the difference, even on an iPhone! However if your needs/requirements involve deep usage and integration of a DAW and a lot of post production, I think there are better offerings/solutions to consider?