I find the Cook cather system excellent. The big advantage is all in the connector at the top - which allows the bronchoscope and the catheter to seal thus allowing ventilation to continue.
The only disadvantage is that the lumen of the catheter is small and does not allow good deflation of the lung, especially if secretions get caught in it. I get around this problem as best I can by deflating the catheter balloon, disconnecting the circuit (to allow the lungs to collapse to FRC), inflating the blocker balloon to isolate the 'bad' lung, then resuming ventilation of the 'good' lung. This gives the deflated lung a good head-start on collapsing and the surgeon can usually displace the remaining air from their operative field - if only to another part of the deflated lung, while absorption of the alveolar gas occurs.