This is a fantastic sub sample delay. You can either edit the sample value or enter them as meter, foot or milliseconds, making it quite versatile. I used it for aligning multi mic'd recordings but it found some nice application in slightly shifting certain tracks in a production too to either remove phasing or add some groove. I have found it to be very stable and with a recent update ultra light on CPU (especially due to the online/offline oversampling which shifts the quality and time into rendering). It also dynamically reports its latency to the host such that negative delays are possible.
Pros: - adjustable min & max for sweeping - online/offline oversampling - very clean oversampling - groups - negative delays.
Cons: - the only con for me was CPU consumption but this has been improved so much with an update.