I don't think it's anything absolutely bad, but 'Operation Dumbo Drop' is pretty lacklustre and a bit slow to sit through.
I do like the cast. Danny Glover (Cahill) and Ray Liotta (Doyle) are solid together, while Denis Leary (Poole) and Doug E. Doug (Ashford) may not give anything memorable but both are alright; as is Dinh Thien Le (Linh). Also interesting to see Raymond Cruz appear, in his early years pre-Tuco.
It seems the trio of Glover, Liotta and Leary really don't rate this, given the latter's comments in later years about it; though it sounds like that's more to do with the filming process, rather than the end product.
I more than likely wont be revisiting this any time soon, but I don't hate it or anything.